City of Littleton (CO)

Codes

NEC Code Version

2023

Code List

2024 International Building Code by the International Code Council, Inc. ("2024 IBC")

2024 International Energy Conservation Code by the International Code Council, Inc. ("2024 IECC")

2024 International Existing Building Code by the International Code Council, Inc. ("2024 IEBC")

2024 International Fuel Gas Code by the International Code Council, Inc. ("2024 IFGC")

2024 International Mechanical Code by the International Code Council, Inc. ("2024 IMC")

2024 International Plumbing Code by the International Code Council, Inc. ("2024 IPC")

2024 International Property Maintenance Code by the International Code Council, Inc. ("2024 IPMC")

2024 International Residential Code by the International Code Council, Inc. ("2024 IRC")

2024 International Swimming Pool and Spa Code by the International Code Council, Inc. ("2024 ISPSC")

2024 International Wildland-Urban Interface Code by the International Code Council, Inc. (“2024 IWUIC”)

ICC A117.1-2017 Standard with Supplement 1 - Accessible and Usable Buildings and Facilities by the International Code Council, Inc. (“2017 ICC A117.1”)

NFPA 70 National Electric Code 2023 Edition by the National Fire Protection Association ("2023 NEC")

1997 Uniform Code for the Abatement of Dangerous Buildings by the International Conference of Building Officials

Colorado Model Electric Ready and Solar Ready Code, by The Colorado Department of Local Affairs and Colorado Energy Office on June 1, 2023

2021 International Fire Code by the International Code Council, Inc. ("2021 IFC")

ASCE Code Specification

ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status

Targeted

Any SolarAPP+ Restrictions

1

SolarAPP+ Restrictions

MPU,Derate

How Many Plansets Required

1

Revision Required

1

Rough Inspection

Rough Electrical

New Planset Required For Module Swap

0

Stamps

Ee Stamp Required On SLD

Yes

Wet Stamps Required

Digital Structural,Digital Electrical

Structural Calculations Required

Yes

Stamp Location On Plans

Unspecified

Date On Stamps

Expiration Date

Fire setbacks

Fire Setback Enforced

1

Ridge Setback

3

Rake Setback

3

Hip Valley Setback

1

Eave Setback

3

Setback Notes

36 in required around all sides including ridge, rakes, and eaves.

1.5 Hip/Valley Setbacks

AHJ very strict

Structural & loads

Wind Speed

136

Wind Notes

Exposure Category C

Seismic Design Category B

Snow Load

40

Snow Load Notes

Ground Snow Load 40 PSF Non-Reducible

Reducible Snow Load Allowed

0

Max Attachment Spacing

96

Structural Notes

Standard

Minimum Ground On Roof

#10

Electrical

Electrical Load Calcs Required

Derates

Allowed POI

Line Side Taps,Meter Adapter,PV Breaker,Load Side Taps

Panel Schedule Required

Partial Home Backup

Temperature Rating

90

De Rating Ampacity

1

Battery / ESS

Unique Battery Placards Needed

0

ESS Notes

Standard

Separate ESS Disconnect Required

ESS Disconnect

ESS Elevation Detail Required

No

Plan set

Plan Set Requirements

EE stamp required on SLD.

Attachment Detail

36 inches required around all sides including ridge, rakes, and eaves.

Electrical Diagram

Centerfed 120%: Not Sure SLD needs to be stamped by electrical engineer. Reach out to staff electrical inspector for clarification on 120% rule for center-fed MSP's

Custom Placards Required

0

Non Standard Planset Requirements

Single Line Diagram

Ground mount

Ground Mount Fencing Required

Mesh/Scrim