Arkansas Building Codes, Permits and Contractor Rules
Here’s every rule from our 50-state guides for Arkansas on one page: the residential building code, frost depth, retaining wall permits, the 811 dig law, drainage law, contractor licensing, deposit limits, mechanics lien deadlines, workers’ comp, planting zones and frost dates. Each section links the official source and the full 50-state comparison.
Arkansas at a glance
- Building code: 2021 IRC (statewide minimum)
- Frost depth: Set locally; often 12-18 in.
- 811 notice: At least 2 but not more than 10 full working days before digging
- Contractors: State license required
- Deposits: No statewide cap
- Liens: 120 days from last furnishing
- Workers’ comp: 3+ (construction: 2+; subs/GCs: 1+)
- Drainage rule: Modified common enemy
- Planting zones: 7a to 8b
| Topic | Arkansas | Compare |
|---|---|---|
| Residential building code | 2021 IRC (statewide minimum) | All states |
| Frost line depth | Set locally; often 12-18 in. | All states |
| Retaining wall permit | No state-specific rule. The state's adopting rule amends parts of the code's permit chapter but lists no retaining wall change. | All states |
| 811 notice before digging | At least 2 but not more than 10 full working days before digging | All states |
| Contractor license | State license required | All states |
| Deposit limit | No statewide cap | All states |
| Right to cancel | 3 days excl. Sundays, sales at home | All states |
| Lien filing deadline | 120 days from last furnishing | All states |
| Workers’ comp required | 3+ (construction: 2+; subs/GCs: 1+) | All states |
| Drainage between neighbors | Modified common enemy | All states |
| Planting zones (2023 USDA) | 7a to 8b | All states |
| Frost dates (NOAA) | Last frost mid-Mar (Texarkana) to early Apr (Fayetteville); first frost late Oct (Fayetteville) to mid-Nov (Texarkana) | All states |
Arkansas residential building code
- Code
- 2021 International Residential Code as amended by the State Fire Marshal (Arkansas Fire Prevention Code, Volume III)
- How it applies
- Statewide minimum, local amendments allowed
- In effect since
- January 1, 2023
- Code agency
- Arkansas State Fire Marshal's Office (Arkansas Department of Public Safety)
- Who enforces it
- Cities and counties may only adopt and enforce the Arkansas Fire Prevention Code but may add stricter rules. Inspection depends on whether a local building department exists.
- Good to know
- Arkansas uses the 2021 IRC statewide as part of its Fire Prevention Code. Whether a building inspector checks your project depends on your city or county.
Compare building codes in all 50 states
Frost line depth in Arkansas
- Who sets it
- Local building department
- Local examples
- City of Little Rock: 12 in. (footings 12 in. deep minimum)
City of Rogers: 18 in.
City of Mountain Home: 18 in. - Typical range
- 12-18 in.
- Good to know
- Little Rock's design criteria sheet is dated Jan. 1, 2014, so confirm the current value with the city.
Frost line depth in every state
Retaining wall permits in Arkansas
- Permit exemption
- No state-specific rule. The state's adopting rule amends parts of the code's permit chapter but lists no retaining wall change. Check with your city or county building department.
- Who decides
- Your city or county building department enforces the code and decides.
- Good to know
- Check with your city or county building department before you build.
Retaining wall permit rules in every state
811 dig law in Arkansas
- One-call center
- Arkansas 811 (Arkansas One Call System)
- Notice before digging
- At least 2 but not more than 10 full working days before digging
- Ticket good for
- 20 working days from the date notice was given (work must start within 10 working days)
- Hand-dig zone
- 18 in. (law's 'approximate location': strip at least 3 ft wide but no wider than the facility width plus 1.5 ft on either side)
- Homeowners
- Yes. 'Excavation' includes digging with tools 'manipulated only by human or animal power.' Arkansas 811: 'Anyone that will be disturbing the ground is required to contact Arkansas 811… regardless of how shallow or deep.' Statutory exemptions cover agricultural work (cultivation, posthole digging, farm ponds, land clearing) only when not on an operator's right-of-way.
- The law
- Ark. Code Ann. § 14-271-101 et seq. (Arkansas Underground Facilities Damage Prevention Act)
- Good to know
- Arkansas updated its dig law Aug 5, 2025.
Drainage law and stormwater permits in Arkansas
- Rule
- Modified common enemy
- The rule
- Modified common enemy: a landowner may defend against surface runoff without liability, unless the injury to the neighbor could have been avoided with reasonable effort and expense.
- Why Secondary source
- This rests on Arkansas Court of Appeals decisions. In Bilo the court quoted the rule as background but decided the case on other grounds, and no recent Arkansas Supreme Court opinion confirming it was found.
- Leading case
- Bilo v. El Dorado Broadcasting Co.. Ark. Ct. App. No. CA 07-507 (Feb. 13, 2008); quoting Boyd v. Greene County, 7 Ark. App. 110, 644 S.W.2d 615 (1983)
- What it means for your yard
- You can generally protect your land from runoff, but if your regrading or drainage work damages a neighbor in a way you could have avoided with reasonable effort and cost, you can be liable; work that diverts a defined watercourse (a channel with a bed and banks) is judged by whether it was reasonable.
- Construction stormwater permit
- Arkansas Department of Environmental Quality (DEQ): 1 acre or more (or part of a larger common plan): small sites 1 to under 5 acres are covered automatically with no NOI; large sites 5 acres or more must file an NOI, SWPPP and fee (permit ARR150000)
- State rules below 1 acre
- No statewide rule below the 1-acre permit found; check your county and town.
- Local rules
- Cities and counties often have their own grading, drainage or stormwater ordinances that can apply to smaller residential projects.
- Good to know
- Arkansas courts let landowners protect their property from runoff, but you can be liable if you cause damage you could reasonably have avoided. Construction stormwater coverage starts at 1 acre; sites of 5 acres or more file a notice with DEQ.
Contractor licensing in Arkansas
- Statewide rule
- License
- Agency
- Arkansas Contractors Licensing Board (Residential Committee), Arkansas Department of Labor and Licensing
- Who needs it
- Residential building contractors and home improvement contractors working on single-family (1-4 unit) homes must be licensed when the job exceeds $2,000.
- When it applies
- Residential jobs over $2,000 (commercial jobs $50,000 or more)
- Check a contractor
- Official lookup
- Licensed separately
- Residential roofers need a roofing registration certificate (required since July 1, 2021).
- Good to know
- Splitting a job into contracts under $2,000 does not avoid the license requirement (Ark. Code 17-25-513). You can also verify a license by calling the Board at (501) 372-4661.
Contractor license requirements in every state
Contractor deposits and your right to cancel in Arkansas
- Deposit limit
- No statewide cap.
- Right to cancel
- Home solicitation sales over $25 (cash or credit, goods or services, sold away from the seller's place of business): the buyer may cancel until midnight of the third day after signing, not counting Sundays and legal holidays (Ark. Code §§ 4-89-102, 4-89-107).
- Other protections
- Contractors on home improvement jobs costing more than $2,000 must be licensed and bonded by the Arkansas Contractors Licensing Board (per Attorney General guidance).
- The law
- Ark. Code §§ 4-89-101 to 4-89-110 (Home Solicitation Sales)
- Good to know
- Arkansas's cancel window for home sales is three days not counting Sundays or holidays, so a contract signed Friday can usually be cancelled through Tuesday. On home improvement jobs over $2,000, the contractor must be licensed and bonded by the state.
Contractor deposit limits in every state
Mechanics lien deadlines in Arkansas
- Lien deadline (prime)
- File with the circuit clerk within 120 days after the materials were furnished or the work was performed, with an affidavit of notice attached (Ark. Code § 18-44-117).
- Lien deadline (sub/supplier)
- Same as prime.
- Preliminary notice (sub/supplier)
- No separate notice if the owner received the contractor's pre-work notice, which covers all potential claimants. A sub or supplier may give the notice itself. No one may lien unless the owner received at least one copy; if it arrived after work began, a claimant relying on it can lien only for work after it (Ark. Code § 18-44-115(a)(5)).
- Notice of intent
- Required for all claimants: written notice to the owner at least 10 days before filing the lien, stating the amount and from whom it is due, served by officer, witness, restricted-delivery certified mail or verified delivery service (Ark. Code §§ 18-44-114, 18-44-117).
- Enforce within
- Suit within 15 months after the lien is filed, plus a lis pendens (Ark. Code § 18-44-119).
- Homeowner rules
- On one- to four-unit residential property, no one has a lien unless the owner received the statutory notice; the residential contractor must give it before work begins on behalf of everyone (Ark. Code § 18-44-115).
- The law
- Ark. Code Ann. Title 18, Ch. 44, Subch. 1, § 18-44-101 et seq.
- Good to know
- On an Arkansas home of one to four units, nobody can lien unless the owner received the state's lien notice before work started, so contractors should put it in the contract and deliver it in person or by certified mail.
Mechanics lien deadlines in every state
Workers' comp requirements in Arkansas
- Who must carry it
- 3 or more regular employees in most businesses; 2 or more for anyone engaged in building or building repair work; 1 or more for a contractor who subcontracts any part of a contract; 1 or more for any subcontractor (Ark. Code § 11-9-102(11)(A)-(D)).
- Owners and officers
- Sole proprietors, partners and LLC members can apply to the Commission for a Certificate of Non-Coverage, which exempts only the named owner, never its employees, and is not a waiver of workers' comp liability (AWCC Advisory 2001-1; joint AWCC/Insurance Dept./Contractors Licensing Board bulletin, Aug 2007). Corporate officer rules not confirmed in a current official source.
- Subcontractors
- When a subcontractor fails to secure coverage, the prime contractor is liable for compensation to the sub's employees and can recover from the sub (Ark. Code § 11-9-402, per ALFA International compendium, secondary). The 2007 joint bulletin warns that insurers audit and charge premium for uninsured subs' workers and that a contractor would probably be liable if an uninsured sub's worker is hurt.
- Homeowners
- A person employed by a homeowner as a domestic servant, or to do gardening, maintenance, repair, remodeling or similar work at the employer's own private home, is excluded from covered employment (Ark. Code § 11-9-102(11)(A)(i)-(ii)).
- Penalties
- No penalty amount published on an official source we could find. Ask the state agency.
- The law
- Ark. Code Title 11, Ch. 9; § 11-9-102(11) (employment), § 11-9-402 (prime contractor liability)
- State agency
- Arkansas Workers' Compensation Commission (Arkansas Department of Labor and Licensing)
- Good to know
- Arkansas sets lower thresholds for construction: 2 employees in building or repair work, and just 1 if you subcontract work or work as a sub. An owner's Certificate of Non-Coverage exempts only that owner, not anyone working for them.
Workers' comp requirements in every state
Planting zones in Arkansas
- 2023 USDA zones
- 7a to 8b
- Coldest-night range
- 0°F to 20°F
- Coldest area
- The Ozarks of northwest Arkansas, including Fayetteville
- Example cities
- Little Rock: 8a, Fayetteville: 7a, Fort Smith: 8a, Jonesboro: 8a
- Local plant advice
- University of Arkansas System Division of Agriculture Cooperative Extension Service
- Good to know
- Every part of Arkansas moved up a half zone on the 2023 map. The Ozark country around Fayetteville sits in the coldest zone, 7a.
Frost dates in Arkansas
| Station | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Little Rock Central Arkansas | March 21 | November 10 | 234 |
| Fayetteville Northwest Arkansas / Ozarks (NCEI station: Fayetteville NW Arkansas airport) | April 8 | October 28 | 203 |
| Fort Smith Arkansas River valley, west | March 25 | November 6 | 224 |
| Texarkana Southwest Arkansas | March 13 | November 13 | 246 |
- Typical range
- Last frost mid-Mar (Texarkana) to early Apr (Fayetteville); first frost late Oct (Fayetteville) to mid-Nov (Texarkana)
- Good to know
- These are typical (50%) dates from NOAA's 1991–2020 climate normals, so about half of years still bring a 32°F night after the listed spring date. In Arkansas, the last spring frost at the stations listed ranges from mid-March around Texarkana to early April around Fayetteville.
- Local frost or planting guide
- University of Arkansas System Division of Agriculture Cooperative Extension Service
Frequently Asked Questions
What building code does Arkansas use?
2021 International Residential Code as amended by the State Fire Marshal (Arkansas Fire Prevention Code, Volume III). It applies as follows: statewide minimum, local amendments allowed. Your local building department can confirm the edition and amendments for your address.
How deep is the frost line in Arkansas?
Frost depth is set by local building departments. Typical local values: 12-18 in.. Footings for houses, additions and attached decks go below it.
How much can a contractor ask for up front in Arkansas?
No statewide cap. Cancel rights: Home solicitation sales over $25 (cash or credit, goods or services, sold away from the seller’s place of business): the buyer may cancel until midnight of the third day after signing, not counting Sundays and legal holidays (Ark. Code §§ 4-89-102, 4-89-107).
How long does a contractor have to file a mechanics lien in Arkansas?
File with the circuit clerk within 120 days after the materials were furnished or the work was performed, with an affidavit of notice attached (Ark. Code § 18-44-117). Subcontractors and suppliers may have different notice rules; see the section above.
What planting zone is Arkansas?
On the 2023 USDA map, Arkansas runs from zone 7a to 8b. Examples: Little Rock 8a, Fayetteville 7a, Fort Smith 8a. Enter your ZIP on the USDA map for your exact zone.
Do contractors need workers' comp in Arkansas?
3 or more regular employees in most businesses; 2 or more for anyone engaged in building or building repair work; 1 or more for a contractor who subcontracts any part of a contract; 1 or more for any subcontractor (Ark. Code § 11-9-102(11)(A)-(D)). Owner exemptions and subcontractor rules are in the workers’ comp section above.
When is the last frost in Arkansas?
At the NOAA stations we list: Last frost mid-Mar (Texarkana) to early Apr (Fayetteville); first frost late Oct (Fayetteville) to mid-Nov (Texarkana). These are typical (50%) dates from the 1991–2020 climate normals, so about half of years still bring a 32°F night after the spring date.
This page is general information, not legal or tax advice. Rules change; the agencies and statutes linked above have the final word.
Arkansas in each 50-state guide: Frost line depth · 811 dig laws · Retaining wall permits · Contractor licensing · Contractor deposit limits · Building codes · Planting zones · Mechanics lien deadlines · Workers' comp · Frost dates · Drainage laws · Noxious weed laws · Rainfall and snowfall · Landscaper pay · Pesticide applicator licensing · Landscaping sales tax · All state guides
Last checked October 31 and November 1, 2026 against official state and local sources for this state. Rules change; your state agency or local building department has the final word. Spot something out of date? Email info@muthlerlandscaping.com and we’ll fix it.
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Cite as: Muthler Landscaping & Construction, “Arkansas Building Codes, Permits and Contractor Rules,” https://muthlerlandscaping.com/state-guides/arkansas/ (last checked November 9, 2026).
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