AGENDA ITEM #8
April 17, 2012
Introduction
MEMORANDUM
April 13,2012
TO:
FROM:·
County Council
Amanda Mihill, Legislative Attorney
~
't~Michael
Faden, Senior Legislative Attorney
SUBJECT:
Introduction:
Bill 16-12, Trees - Utility Vegetation Management
Bill 16-12, Trees - Utility Vegetation Management, sponsored by Council President Berliner and
Councilmember EIrich, is scheduled to be introduced on April 17, 2012. A public hearing is
tentatively scheduled for June 12,2012 at 7:30 p.m.
Bill 16-12 would:
(I)
require certain utilities to submit a vegetation management plan to the County;
(2)
require certain utilities to provide notice to certain property owners before
conducting vegetation management activities;
(3)
require certain utilities to obtain consent from certain property owners before
conducting vegetation management activities;
(4)
require the County Executive to issue implementing regulations;
(5)
require the County Executive to set a fee for certain purposes; and
(6)
generally amend County law regarding utility vegetation management.
The Maryland Public Service Commission (PSC), as required by State law, is in the process of
developing service quality and reliability standards for the delivery of electricity to customers.
Draft regulations were published in the February 24, 2012 issue of the Maryland Register (see
excerpts on
(8).
These regulations provide, in part, that the PSC standards apply to the extent
not limited by law or regulation of any unit of local government.
This packet contains:
Bill 16-12
Legislative Request Report
Proposed PSC Regulation Excerpts
Circle
#
1
7
8
F:\LAW\BILLS\1216 Trees-Ctility Vegetation Mgmt\lntro Memo.Doe
 PDF to HTML - Convert PDF files to HTML files
Bill No.
16-12
Concerning: Trees - Utility Vegetation
Management
Draft No. 8
Revised:
4/11/2012
Introduced:
April 17, 2012
Expires:
October 17, 2013
Enacted: _ _ _ _ _ _ _ _ __
Executive: _ _ _ _ _ _ _ _ __
Effective: _--::--:--_ _ _ _ _ __
Sunset Date:
~N.:.:on':'-"e~___:::__
_ _ __
Ch. _ _, Laws of Mont. Co. _ _ __
COUNTY COUNCIL
FOR MONTGOMERY COUNTY, MARYLAND
By: Council President Berliner and Councilmember EIrich
AN
ACT to:
(1)
(2)
(3)
(4)
(5)
(6)
require certain utilities to submit a vegetation management plan to the County;
require certain utilities to provide notice to certain property owners before
conducting vegetation management activities;
require certain utilities to obtain consent from certain property owners before
conducting vegetation management activities;
require the County Executive to issue implementing regulations;
require the County Executive to set a fee for certain purposes; and
generally amend County law regarding utility vegetation management.
By adding
Montgomery County Code
Chapter 55A, Trees
Article I, Utility Vegetation Management
Sections 55A-l to 55A-8
Boldface
Underlining
[Single boldface brackets]
Double underlining
[[Double boldface brackets]]
* * *
Heading or defined term.
Added to existing law by original bill.
Deletedfrom existing law by original bill.
Added by amendment.
Deletedfrom existing law or the bill by amendment.
Existing law unaffected by bill.
The County Council for Montgomery County, Maryland approves the following Act:
 PDF to HTML - Convert PDF files to HTML files
BILL
No.
16-12
1
Sec. 1. Article I of Chapter 55A is added as follows:
Chapter 55A. [Reserved] Trees.
ARTICLE
I.
Utility Vegetation Management.
55A-1. Definitions.
In this Section the following words have the meanings indicated:
2
3
4
5
6
7
8
9
ANSI standards
means the vegetation management standards described in
ANSI A300, developed
Qy
the American National Standards Institute, or any
successor standard.
Department
means the Department of Transportation.
Director
means the Director ofthe Department or the Director's designee.
Tree
means
~
10
11
12
13
plant that has woody stem or trunk that is at least
Q
inches in
diameter at breast height.
Hazardous tree
means
system reliability.
~
tree that poses an imminent hazard to any utility's
14
15
Utility
means
~
utility company doing business in the County, and includes
~
16
17
contractor or other person directed or controlled
Qy
that utility.
55A-2. Applicability.
Except in Section 55A-6(b) or with respect to any tree located in
~
18
19
20
21
22
23
24
County
right-of-way, this Article does not
illmlY
to any tree located in
~
utility'S deeded right-
of-way or public utility easement where the utility is authorized to perform
vegetation management activities.
55A-3. Vegetation management plan required.
.ill)
Each utility must give the Chief of Tree Maintenance in the Department
~~
of any vegetation management plan, and any amendment to that
25
26
27
plan, submitted to the Maryland Public Service Commission within 30
days after the plan or amendment is submitted to the Commission, but
before starting vegetation management activities.
If
~
utility does
@-
f:\law\bills\1216 trees-utility vegetation mgmt\bill8.doc
 PDF to HTML - Convert PDF files to HTML files
BILL No. 16-12
28
29
30
31
regularly scheduled and planned vegetation management but is not
required to submit
£1
vegetation management plan to the Commission,
the utility must submit
£1
plan to the Department.
(hl
The vegetation management plan sent to the County, to the extent not
otherwise required under state law, must describe the following
activities conducted
Qy
that utility:
32
33
34
35
36
37
38
ill
ill
ill
(1)
tree pruning and removal, identified
Qy
street name;
vegetation management around poles, substations, and energized
overhead electric plant;
manual, mechanical, or chemical vegetation management along
rights-of-way;
inspection of each area where vegetation management
performed after the vegetation management;
IS
39
40
41
42
43
44
45
ill
®
cultural control practices;
public education regarding vegetation management practices;
public and customer notice of planned vegetation management
activities;
m
([}
debris management during routine vegetation management and
outage restoration efforts; and
46
47
48
49
50
m
(ill
independent quality assurance measures.
55A-4. Vegetation management practices.
Each utility must conduct vegetation management in accordance with:
51
52
53
ill
ill
its vegetation management plan; and
either the most current ANSI standards or alternative vegetation
management standards that the Director finds are equivalent to
the ANSI standards.
[)
f:\law\bills\1216 trees-utility vegetation mgmt\bill B.doc
 PDF to HTML - Convert PDF files to HTML files
BILL
No. 16-12
54
55
W
(£)
Each utility that removes
~
tree must grind the stump of the removed
tree and fill in any resulting hole.
Each utility must remove any debris from
~
56
57
58
59
60
61
vegetation management
activity, such as branches, leaves, chips, vines, and logs from the right­
of-way.
55A-5. Public notice
of vegetation
management; consent.
{ill
Before performing any vegetation management, each utility must make
~
reasonable attempt to notify the owner or occupant of any property on
62
63
where vegetation management will be performed.
W
The notice required
Qy
this subsection must include
~
"customer bill of
64
65
66
67
68
rights", approved
Qy
the Office of Consumer Protection, that specifies
the rights and obligations of the property owner and the utility regarding
vegetation management.
(£)
The utility must deliver this notice
Qy
direct mail, door hanger, or
another written method approved
Qy
the Department. A utility may use
more than one method to deliver this notice. This notice must not be
delivered only
Qy
~
bill insert.
@
69
70
71
72
73
74
75
76
77
Before performing any vegetation management activity on
~
property,
the utility must obtain the written consent of the owner or occupant of
that property.
55A-6. Specific Circumstances.
{ill
Hazardous trees.
ill
If
~
utility finds that
~
tree poses an imminent hazard to its system
reliability, before removing the tree or performing any other
vegetation management activity on that tree the utility must make
reasonable attempts to obtain the consent of the owner or
occupant of the property where the tree is located.
(})
f:\law\bills\1216 trees-utility vegetation mgmt\biI18.doc
78
79
80
 PDF to HTML - Convert PDF files to HTML files
BILL No. 16-12
81
ill
If the utility cannot obtain the consent of the property owner or
occupant, the utility may ask the Chief of Tree Maintenance in
the Department to inspect the tree.
If the Chief of Tree
82
83
84
85
86
Maintenance finds, after inspecting the tree, that the tree poses an
imminent hazard to the utility's system reliability, the Chief may
direct the utility to remove the tree without obtaining the consent
of the owner or occupant.
(hl
Trees along rural and rustic roads.
87
88
89
ill
Except as provided in paragraph
Q1
~
utility must not remove
90
91
92
93
any tree along
~
rural and rustic road that is:
fA)
in the public right of way; or
within 35 feet of the center line, even if the tree is on
private property.
(B)
94
95
96
ill
A utility may remove
~
tree along
~
rural and rustic road if the
utility submits an application to the County Chief of Tree
Maintenance and the Chief approves the application. If the Chief
does not respond to the application within 45 days, the
application is approved.
(£l
Trees in
f!
historic district.
97
98
99
100
101
102
103
ill
Except as provided in paragraph
Q1
~
utility must not remove
tree in
~
~
historic district if the tree is identified as
~
character­
defining feature in the district and is:
fA)
in the public
ri.gh!
of way; or
within 35 feet of the center line, even if the tree is on
private property.
104
105
106
107
@)
ill
A utility may remove
defining feature in
~
~
tree that is described as
~
character­
historic district if the utility submits an
f:\law\bills\1216 trees-utility vegetation mgmt\biI18.doc
®
 PDF to HTML - Convert PDF files to HTML files
BILL No. 16-12
108
109
110
111
application to the County Chief of Tree Maintenance and the
Chief approves the application. If the Chief does not respond to
the application within 45 days, the application is approved.
55A-7. Violations
112
113
114
115
116
117
.cru
Complaint.
If
f!
person believes
f!
utility has violated or is about to
violate this Section, the person may file
f!
complaint with the
Department in writing, in person, or electronically. The Department
must investigate the complaint within
f!
reasonable time and notify the
complainant and the utility in writing or electronically whether
f!
violation has occurred and, if so, what action the Department will take
or the utility must take.
(hl
Violation.
A violation of this Article is
f!
Class A violation.
118
119
120
121
122
123
124
125
126
127
55A-S. Re2ulations and fees.
.cru
Regulations.
The County Executive must adopt regulations under
to
method
ill
mmlY
this Article. Those regulations must include
f!
process for the Department to. review the utility's vegetation
management activities to assure quality control and adherence to each
applicable plan.
(hl
Fee.
The Executive,
Qy
regulation adopted under method
ill
must set
one or more fees to cover the costs of administering this Article.
Approved:
128
129
Roger Berliner, President, County Council
130
Approved:
Date
131
Isiah Leggett, County Executive
Date
t\law\bills\1216 trees-utility vegetation mgmt\bill8.doc
 PDF to HTML - Convert PDF files to HTML files
LEGISLATIVE REQUEST REPORT
Bi1116-12
Trees
-
Utility Vegetation Management
DESCRIPTION:
Bill 16-12 would require certain utilities to submit a vegetation
management plan to the County; require certain utilities to provide
notice to certain property owners before conducting vegetation
management activities; and require certain utilities to obtain consent
from certain property owners before conducting vegetation
management activities.
Vegetation management has been a serious concern for many County
residents. The Council has received numerous complaints that trees
have been too aggressively trimmed. Additionally, Pepco has stated
that there are instances where they need to work on private property
but homeowners are preventing them from doing so thus endangering
the vitality of the electrical system.
To provide protection for the County's tree canopy while providing
an opportunity for utilities to perform necessary vegetation
management activities.
Department of Permitting Services
To be requested.
To be requested.
To be requested.
To be researched.
Amanda Mihill, Legislative Attorney, 240-777-7815
To be researched.
PROBLEM:
GOALS AND
OBJECTIVES:
COORDINATION:
FISCAL IMP ACT:
ECONOMIC
IMPACT:
EVALUATION:
EXPERIENCE
ELSEWHERE:
SOURCE OF
INFORMATION:
APPLICATION
WITHIN
MUNICIPALITIES:
PENALTIES:
Class
A.
F\LA W\BILLS\1216 Trees-Utility Vegetation Mgmt\LRR,Doc
f:\law\bills\ 1216 trees-utility vegetation mgmt\lrr.doc
 PDF to HTML - Convert PDF files to HTML files
PROPOSED ACTION ON REGULATIONS
346
regulations are effective until and including December
3
f
of that
year for reporting purposes only.
F.
Reporting. Each utility shall report its year-ending
performance in its annual performance report.
G.
Except as otherwise set forth in §D of this regulation, the
standards in this regulation shall apply to customer calls offired to
or received by a utility's call overflow system or a third-party vendor
retained by the utility.
H.
Corrective Action Plan
If
a utility fails to satisfY the standard in
§A, B or
C,
of this regulation, it shall provide a corrective action plan,
preferably in its annual performance report but by no later than April 1.
.09
Vegetation Management Requirements.
A. Intent and Scope.
(I)
It
is
the intent of the Commission that a utility engage in
vegetation management programs that are necessary and
appropriate to maintain safety and electric system reliability.
(2) The standards set forth in this regulation shall constitute
minimum vegetation management requirements applicable to utilities
in the State, and are not intended to supersede or prohibit a utility's
implementation of more aggressive vegetation management
standards and practices.
(3) The vegetation management requirements in this chapter
to the extent not limited
by
contract rights, property
controlling law or regulation ofany unit ofState or local
(4) This regulation applies to any electric
not regulated by the Federal Energy Regulatory
B. Technical Standards for Vegetation
(I)
Each utility shall ensure that
conducted on its energized plant
is
Ol'J-fm-m"ti
standards applicable to Maryland Licensed
incorporated by reference under COMAR
(2) Each utility's vegetation
address, at a minimum, all ofthe following
(a) Tree pruning and removal;
(b) Vegetation management around
energized overhead electric plant;
(c) Manual, mechanical, or
management along rights-ofway;
(d) Inspection of areas where
performed after the vegetation management;
(e) Cultural control practices;
(j)
Public education regarding vegetation
practices;
(g)
Public and customer notice of planned vegetation
management activities; and
(h) Debris management during routine vegetation
management and during outage restoration efforts.
(3) Each utility shall develop its own vegetation management
program, which shall be consistent with this regulation In developing the
program, a utility shall conduct its vegetation management
and
determine the extent and priority of vegetation management to
be
performed at a particular site based on these factors;
(a) The extent ofthe potential for vegetation to interfere with
poles, substations, and energized overhead electric plant;
(b) The voltage of the affected energized conductor, with
higher voltages requiring larger clearances;
(c) The relative importance of the affected energized
conductor in maintaining safety and reliability;
(d) The type of conductors and type of overhead
construction;
(e) The likely regrowth rate for each species ofvegetation at
the site;
(j)
The potential movement of energized conductors and
vegetation during various weather conditions;
(g)
The utility's legal rights
(0
access the area where
vegetation management is to be performed;
(h) The maturity ofthe vegetation;
(i)
The identification of the structural condition of the
vegetation, including the characteristics ofa species as one having a
high probability of causing a service interruption during weather
events;
OJ
State and local statutes, regulations, or ordinances
affecting utility performance ofvegetation management;
(k) Customer acceptance of the proposed vegetation
management where the utility does not have legal rights to perform
vegetation management; and
(I)
Any other appropriate factor approved by the
Commission
(4) Each utility shall fife a copy of its vegetation management
program with the Commission within 90 days of the effective date of
this regulation.
If
a utility makes a change in its vegetation
management program, the utility shall file a copy of the change with
the Commission no later than 30 days prior to implementing the
change, unless exigent circumstances warrant implementation
without prior notice, in which case the change shalf be filed by no
fater than 30 days after implementation.
ecord Keeping, and Reporting.
shall adopt standards, to the extent not covered
to be used by all persons who perform
for the utility, whether employees or
care of trees and other
woo~
plants,
line clearance techniques,
and document scheduled vegetation
the utility or its contractor performs,
is
not limited to;
each circuit or substation or,
if
UD;~/UllUn
where vegetation management
management performed including
and methods used;
Maryland Licensed Tree Expert responsible
rlGrlaJl.em.mtat the circuit or substation level;
date ofactivity;
resulting in serious injury to a person as
management activities; and
a utility seeks to remove a tree or limb, but
is
to do so because permission or cooperation
is
not obtained.
(3) Each utility shall include a summary of the information
required under
§C(2)
of this regulation about its vegetation
management during the preceding calendar year, and shall describe
vegetation management planned for the current calendar year, as
part of the annual performance report required to be filed with the
Commission under Regulation ,II of this chapter, The annual
performance report also shall include:
(a) Expenditures for vegetation management in the
preceding calendar year;
(b) Vegetation management budget for the current calendar
year;
(c) Circuits or substations, completion dates, and the
estimated number ofoverhead circuit miles trimmed in the preceding
calendar year in compliance with the cyclical vegetation
management requirements set forth under §F ofthis regulation;
(d) Circuits or substations and the estimated number of
overhead circuit miles scheduled for the current calendar year in
compliance with the cyclical vegetation management requirements
set forth under §F ofthis regulation;
(e) Total overhead circuit miles for the system; and
MARYLAND REGISTER, VOLUME
39,
ISSUE 4, FRIDA Y, FEBRUARY 24,2012
 PDF to HTML - Convert PDF files to HTML files
PROPOSED ACTION ON REGULATIONS
347
(f)
if
applicable. a corrective action plan. preferably in its
annual performance report or,
if
necessary, in the supplemental
annual performance report.
(4) Each utility shall report its own violation ofthis chapter to
the Commission within 60 days of discovery and include its plan for
correcting each violation.
D. Public Notice ofPlanned Vegetation Management.
(l)
Each utility shall make a reasonable attempt to notifY an
owner or occupant of all properties upon which cyclical. planned
vegetation management is to be performed. This requirement will be
satisfied
if
the utility provides notice to affected property owners or
occupants at least
7
days, but not more than 120 days. prior to
performing cyclical, planned vegetation management activity. Notice
shall be provided by direct mailing. door hanger, postcard. personal
contact. or a different method
if
approved by the Commission, but
may not be made solely by bill insert. Nothing in this regulation
prohibits a utility from using more than one ofthese methods.
(2) Each utility or its contractor shall provide written notice of
any cyclical, planned vegetation management activities to a primary
contact for each county and municipality affected at least
2
months
before commencing the activities unless the county or municipality
notifies the utility that written notification
is
not required.
E.
Outreach Programs.
(/)
Each utility shall conduct an annual public
to inform
its
customers. as well as a primary
municipality in the utility's service
vegetation management. and of the utility's
managing vegetation near electric lines,
(2) The public education program
shall be implemented by direct mail,
method
if
approved by the Commission.
(3) Each utility shall post its vegetation management public
education materials on its website.
F. Specific Requirements. Each utility shall perform vegetation
management based on the following schedule:
(l)
Initially beginning on January I of the year immediately
following the effective date of this regulation, a utility on a 4-year
trim cycle shall within:
(a) 12 months perform vegetation management on not less
than 15 percent ofits total distribution miles;
(b)
24
months perform vegetation management on not less
than 40 percent ofits total distribution miles;
(c)
36
months perform vegetation management on not less
than 70 percent ofits total distribution miles: and
(d)
4
years perform vegetation management on not less than
100 percent ofits total distribution miles.
(2) Initially beginning on Januaryl of the year immediately
following the effective date of this regulation, a utility on a 5-year
trim cvcle shall within:
• (a) 12 months perform vegetation management on not less
than 12 percent ofits total distribution miles;
(b)
24
months perform vegetation management on not less
than
32
percent ofits total distribution miles;
(c)
36
months perform vegetation management on not less
ofits total distribution miles;
months perform vegetation management on not less
total distribution miles; and
vegetation management on not less than
distribution miles.
shall follow the vegetation management
under §F(I) or
(2)
of this regulation for
G.
Vegetation management shall
clearances shall be obtained at the
other controlling legal authority:
(l)
Horizontal clearances:
(a) Greater than
34.5
kV: The
cycle (or
5
years' growth ifusinga 5-year trim
of this regulation. The following minimum
limited by contract rights. property rights or
J
5
feet or
4
years' growth
if
using a 4-year trim
shall be measured radially.
Figure No.
1:
>34.5 kV
No Overhanging Limbs - Clear Above
Note that 15 feet
represents the> of
lS
feet or Cycle
Length Clearance
15 feet­
Clearances achieved
at time of trimming
Drawing Not To Scale
MARYLAND REGISTER, VOLUME 39, ISSUE 4, FRIDAY, FEBRUARY 24, 2012
 PDF to HTML - Convert PDF files to HTML files
PROPOSED ACTION ON REGULATIONS
348
(b) From 14 kV to
34.5
kV: The clearance from the conductors shall be the greater of 10 feet or
4
years' growth
if
using a 4­
year trim cycle (or
5
years' growth
if
using a 5-year trim cycle). Horizontal clearance beneath the conductors shall be measured
radially.
Figure No.2:
From 14 kV to 34.5 kV
No Overhanging limbs - Clear Above
Note that 10 Feet
represents the,. of
10 Feet or Cycle
Length Clearance
Clearances achieved
at time of trimming
Drawing Not To Scale
(c) Less than 14 kV but at least
cycle (or
5
years' growth
if
using a 5-year
Figure No.3:
<
14 kV, but at least 600 Volts
Substation to First Protective Device
Multiple Open Wires on Cross-Arm and Armless Construction
No Overhanging Limbs Clear Above
(Also applies to a conductor between
14 kv
and
34.5 kV
operated only as a distribution feeder)
years' growth
if
using a 4-year trim
shall be measured radially.
Clearances achieved
at
time of trimming
Drawing Not To Scale
(d) For a conductor with a voltage from 14 kV to
34.5
kV which is operated only as a distribution feeder, the horizontal
clearance shall be as set forth under §G(J) (c) ofthis regulation as
if
its voltage were less than
14
kV but at least 600 volts.
MARYLAND REGISTER, VOLUME 39, ISSUE 4, FRIDAY, FEBRUARY 24, 2012
 PDF to HTML - Convert PDF files to HTML files
PROPOSED ACTION ON REGULA TlONS
349
(e) The horizontal clearances are the minimum clearances the utility shall establish during each cyclical planned vegetation
management trim cycle.
(2) Vertical clearances:
(a) Greater than
34.5
kV: The vertical clearance above the conductors shall be established by removing all overhanging limbs within
the maximum horizontal clearance zone specified under §G(l)(a) of this regulation. The vertical clearance below the conductors shall be the
greater of
15
feet or
4
years' growth (or
5
years' growth if using a 5-year trim cycle). The vertical clearance below the conductors shall be
measured radially. See Figure No.
J
(b)
From
J
4
kV to
34.5
kV: The vertical clearance above the conductors shall be established by removing all overhanging limbs above
the conductors within the horizontal clearance zone specified under §G(l)(b) ofthis Regulation. The vertical clearance below the conductors
shall be the greater of
J
0 feet or
4
years' growth (or
5
years' growth ifusing a 5-year trim cycle). The vertical clearance below the conductors
shall be measured radially. See Figure No.' 2.
(c) Less than
14
kV but at least 600 volts:
(i)
Multiple open wires on a cross-arm or armless construction from the substation to the first protective device: The vertical
clearance above the conductors shall be established by removing all overhanging limbs above the conductors wi thin the horizontal
clearance zone specified under §G(J )(c) of this regulation. The vertical clearance below the conductors shall be
4
years' growth (or 5
years' growth ifusing a 5-year trim cycle). The vertical clearance below the conductors shall be measured radially.
(ii)
Except as prOVided in §G(2)(c)(i) for multiple open wires on a cross-arm or armless construction, the vertical clearance
above the conductors is
J
5
feet. The vertical clearance below the conductors is
4
years' growth (or
5
years' growth if using a 5-year
trim cycle). The vertical clearances above and below the conductor shall be measured radially.
Figure No.4:
<
14 kV,
but at least
600 Volts
Multiple Open Wires
On
Cross~Arm
and Armless Construction
(Also applies to a conductor between 14 kV and 34.5 kV
operated only as a dIstribution feeder)
//\,
/
k :
Yrs.
;~)ual
,
//
Clearance
!
"~,
,
,
\
~
r\ ....... ....:/
V
\
!
!
,
Clearances achieved
at time of trimming
Drawing Not To Scale
(iii)
Spacer cable, tree wire with messenger cable above. aerial cable, and single-phase: The vertical clearance above the
conductors is
6
feet. The vertical clearance below the conductors is
4
years' growth (or
5
years' growth if using a 5-year trim cycle). The
vertical clearance above and beneath the conductors shall be measured radially.
MARYLAND REGISTER, VOLUME
39,
ISSUE 4, FRIDAY, FEBRUARY 24, 2012
 PDF to HTML - Convert PDF files to HTML files
PROPOSED ACTION ON REGULATIONS
350
Figure
No,
5:
<
14 kV, but at least 600 Volts
Spacer Cable, Aerial Cable, Armless w/Messenger, Single Phase
(Also applies to a conductor between 14 kV and 34.5 kVoperated
!.-...,_,_____________.. ___ .____ .____
'::.::L:.:.
a
4 to 5 Yrs,
Radial
Clearance
------...................- 4 to 5 Yrs.
Radial Clearance
to
5 Yrs. Radial Clearance
Clearances achieved
at time of trimming
Drawing Not To
Scale
(d) For a conductor with a
shall be as set forth in the corresponding
volts.
(e) The vertical clearances
management trim cycle.
(3) Mature trees may be exempt
voltage levels at
34.5
kVand below
H.
Federal Energy Regulatory
CA~_'"~"
Division a copy ofall vegetation manage men
Commission or an entity approved by the
infrastructure information, the utility shall
review at a mutually agreeable time and location
;<f",h"fum
feeder, the vertical clearance
were less than 14 kV but at least 600
each cyclical planned vegetation
the utility
~
reasonable discretion for
with the Commission's Engineering
to the Federal Energy Regulatory
is confidential or critical energy
and make the information available for
.10 Periodic Equipment Inspections.
A. Each utility shall adopt and follow written operation and
maintenance procedures for its electric plant in order to maintain
safe and reliable service. The operation and maintenance programs
shall account for the utility's experience. good engineering practices.
and judgment. and manufacturer's recommendations,
B. Each electric utility shall file its written operation and
maintenance programs required under §A of this regulation with the
Commission within 60 days from the effective date of these
regulations and the programs shall be designed to achieve. at a
minimum. the level of reliability established by the Commission's
regulations.
e
1f the electric utility makes a material change to its written
operation and maintenance programs required under §B of this
regulation, the utility shall file the change with the Commission not
less than 60 days prior to implementing the change. unless exigent
circumstances warrant implementation without prior notice, in which
case the change shall be filed by no later than 30 days after
implementation The filing shall describe each change and the reason
for the change.
D, The operation and maintenance programs required by §B of
this regulation shall:
(/)
Include the frequency or triggers for performing an
inspection;
(2) Identify the electric plant inspections to be performed
including. but not limited to:
(a) Poles;
(b) Overhead and underground conductors and cables;
(c) Transformers;
(d) Switching and protective devices;
(e) Substations;
(f) Regulators; and
(g)
Capacitors; and
(3) Identify acceptance criteria for the inspections,
£.
Except as provided under §D ofthis regulation and Regulation
.09 of this chapter. the operation and maintenance programs
required by §B of this regulation need not include detailed
procedures,
F Each utility shall maintain sufficient records to give evidence of
compliance with its operation and maintenance programs and shall
demonstrate compliance with its program in its annual performance
;:;::;:-..
report.
~
MARYLAND REGISTER, VOLUME 39, ISSUE 4, FRIDAY, FEBRUARY 24, 2012