Alaska Ground Snow Load: The Code and the Local Figures
Alaska takes the national code's figure without a snow amendment of its own.
Alaska takes the national code's figure without a snow amendment of its own
Alaska adopts the national building code without a ground snow load amendment of its own, so the governing figure for a given address is the one the code's own table carries, and the body that applies it is the city or borough building department, and the Alaska state fire marshal's Division of Fire and Life Safety where a municipality has been exempted. four figures published by Alaska bodies themselves are set out below. 17 states are in the same position, which makes it the second commonest arrangement in the country.
The code's figure is applied to a given address by the city or borough building department, and the Alaska state fire marshal's Division of Fire and Life Safety where a municipality has been exempted.
Chapter 16, Section 1601.1 (Scope) of the IBC, is revised by adding a second paragraph to read: “This chapter is adopted as design criteria for the structural safety of buildings constructed under this code. The division of fire and life safety does not perform review for conformance with these criteria.”13 AAC 50.020. International Building Code., read September 23, 2026. Read it at the source
The 4 figures published for Alaska
four Alaska figures, running from 60 pounds per square foot at City of Fairbanks to 100 lbs. per square foot at Cordova, every one of them quoted from the document it was printed in. Nationally 235 figures were read across 33 states.
Alaska splits into zones or bands rather than counties, so the boundary that matters is drawn on the document itself.
Each figure below appears in the unit and the wording its own document used, and links to the row it was printed in. A pound per square foot is a weight, and how deep a weight of snow sits depends on what that snow has been through since it fell, which is why the documents print the load and leave the depth to the engineer standing at the building.
100 lbs. per square foot
Cordova
read from the city's replacement of the residential code's climatic and geographic design criteria table
the document it was printed in, read September 23, 2026
95 pounds per square foot
Petersburg
the borough replaces the figure the adopted building code lists for Petersburg
the document it was printed in, read September 23, 2026
70 PSF
Soldotna
read from the city's entries in the residential code's climatic and geographic design criteria table
the document it was printed in, read September 23, 2026
60 pounds per square foot
City of Fairbanks
the ordinance prints this as a minimum to be used in determining drift loads, alongside a separate roof design snow load
the document it was printed in, read September 23, 2026
What Alaska publishes
Alaska does not publish a snow load document of its own, so the record below is the rule that puts the figure where it is rather than a table of figures.
The adopted code
13 AAC 50.020. International Building Code.
Alaska Department of Public Safety, Division of Fire and Life Safety, effective 10-28-2022
Open the document, read September 23, 2026
The office that holds the figure
The city or borough building department, and the Alaska state fire marshal's Division of Fire and Life Safety where a municipality has been exempted: the state code leaves detached homes out and lets municipalities take over review.
Whoever publishes the number, the authority having jurisdiction over the parcel is the body that applies it, and it is the body a permit application goes to. Where a county has amended the state or national figure for its own terrain, the county’s figure is the one that governs there.
the city or borough building department, and the Alaska state fire marshal's Division of Fire and Life Safety where a municipality has been exempted
the state code leaves detached homes out and lets municipalities take over review
The state fire marshal may exempt a municipality from compliance with the requirements of 13 AAC 50.027 , if the municipality (1) has the expertise to and has enacted ordinances for the review and approval of plans and specifications and the enforcement of state fire statutes and regulations; and (2) agrees in writing to concurrently undertake or continue a building fire safety inspection program that meets or exceeds the program conducted by the division of fire and life safety.
The rule that puts it there, read September 23, 2026

What Alaska adopted
Department of Public Safety, Division of Fire and Life Safety adopts International Building Code 2021 Edition (IBC) (2021). Alaska adopted it as written.
Editions matter more here than they look as though they should. Codes are adopted on a cycle of a few years, a county can amend one in between, and the national standard changed how it presents ground snow load between recent editions. 22 of the fifty states amended the code they adopted rather than taking it as written, and a state snow load table, where one exists, usually lives in that amendment.
The International Building Code 2021 Edition (IBC), Chapters 1 — 12, 14 — 28, and 30 — 35, and Appendix C are adopted by reference to regulate all occupancies and buildings13 AAC 50. Codes and Standards, Alaska Administrative Code, Department of Public Safety, Division of Fire and Life Safety, read September 23, 2026. Read it at the source
The same question in the other forty nine
14 states publish a ground snow load of their own, 17 adopt the national code without a snow amendment, and 19 leave every figure to a county or a city. 235 published figures were read across 33 states, and 16 states mark terrain their own document declines to give a figure for.
The table is ordered by how few steps stand between a reader and a figure keyed to their own town, which is a different ranking from how much snow a state gets.
| State | Who publishes the figure | Keyed to | Figures read |
|---|---|---|---|
| Vermont | The state drew a map | By region or zone | 14 |
| North Carolina | The state drew a map | By elevation | 3 |
| Wisconsin | The state drew a map | By region or zone | |
| Connecticut | The state publishes a table | County by county | 12 |
| Massachusetts | The state publishes a table | County by county | 12 |
| Michigan | The state publishes a table | County by county | 12 |
| Rhode Island | The state publishes a table | County by county | 12 |
| Utah | The state publishes a table | By elevation | 12 |
| Maryland | The state publishes a table | County by county | 10 |
| Indiana | The state publishes a table | County by county | 9 |
| Minnesota | The state publishes a table | County by county | 8 |
| New Jersey | The state publishes a table | County by county | 6 |
| Montana | A study the state adopted | By elevation | 12 |
| New Hampshire | A study the state adopted | By elevation | 12 |
| Texas | The adopted code | By region or zone | 6 |
| Alaska | The adopted code | By region or zone | 4 |
| New York | The adopted code | By elevation | 4 |
| Maine | The adopted code | County by county | 3 |
| Ohio | The adopted code | County by county | 3 |
| Arkansas | The adopted code | By region or zone | 2 |
| Louisiana | The adopted code | County by county | 1 |
| Alabama | The adopted code | One figure statewide | |
| Florida | The adopted code | One figure statewide | |
| Georgia | The adopted code | County by county | |
| Iowa | The adopted code | Not stated | |
| Kentucky | The adopted code | One figure statewide | |
| Nebraska | The adopted code | Not stated | |
| North Dakota | The adopted code | Not stated | |
| Oregon | The adopted code | By elevation | |
| South Carolina | The adopted code | County by county | |
| Tennessee | The adopted code | County by county | |
| California | Each building department | By elevation | 12 |
| Washington | Each building department | By elevation | 12 |
| Arizona | Each building department | By elevation | 11 |
| Nevada | Each building department | By elevation | 9 |
| Delaware | Each building department | County by county | 7 |
| Idaho | Each building department | By elevation | 6 |
| Oklahoma | Each building department | By region or zone | 6 |
| Virginia | Each building department | County by county | 4 |
| Wyoming | Each building department | By region or zone | 4 |
| Pennsylvania | Each building department | County by county | 3 |
| Colorado | Each building department | By elevation | 2 |
| Kansas | Each building department | County by county | 1 |
| South Dakota | Each building department | County by county | 1 |
| Hawaii | Each building department | Not stated | |
| Illinois | Each building department | Not stated | |
| Mississippi | Each building department | County by county | |
| Missouri | Each building department | Not stated | |
| New Mexico | Each building department | By elevation | |
| West Virginia | Each building department | County by county |
Alaska ground snow load questions
Ground snow load in every state
Alaska read September 23, 2026: Alaska Department of Public Safety, Division of Fire and Life Safety, 13 AAC 50.020. International Building Code., and the county and city building departments that publish a figure where the state does not. Every value, adopting rule and case study rule above links to the document it was printed in. Codes are adopted on a cycle and a jurisdiction can amend one in between, so the document linked beside a line is what governs on the day. A ground snow load is an input to a structural calculation about one building by somebody who has been to it.