SOS-A
Class A Contractor
Over $500,000 per job; Secretary of State contractor class.
Verify ↗North Dakota uses a strong two-layer contractor model. When a project exceeds $4,000, the broad contractor gate is a Secretary of State Class A–D license based on contract amount. Regulated scopes then route to separate authorities for electrical, plumbing, asbestos, water wells/geothermal, fire-protection plan review and professional design. Local jurisdictions can still add permit and mechanical requirements.
North Dakota-specific routing · SOS Class A–D + NDSEB + Plumbing Board + DEQ + DWR + Fire Marshal + local AHJ
Above the source-defined threshold, contractor licensing routes through the Secretary of State.
Classes are based on contract amount, not trade scope.
Electrical and plumbing use separate statewide licensing systems.
Asbestos, wells, geothermal, fire-plan and design gates sit outside the generic contractor class.
North Dakota’s Secretary of State license is the broad contractor gate for work above the source-defined $4,000 threshold. Its Class A–D labels control contract amount, while regulated specialty work still needs the correct trade or program credential.
For a job whose cost, value or price exceeds $4,000, start by confirming the contractor’s Secretary of State Class A, B, C or D license. The source describes this requirement as applying to subcontractors, general contractors, public contractors and nonresident contractors.
Then apply the scope gate. Electrical contracting routes to NDSEB contracting status; plumbing, sewer/water, water conditioning and backflow route to the Plumbing Board; asbestos routes to DEQ; water wells and geothermal drilling route to DWR; fire-protection plans route to the AHJ or State Fire Marshal; and professional design routes to the relevant professional board.
SOS amount class first, specialty credential second, local AHJ last. A Class A–D contractor license does not replace a required trade-board or specialty license.
North Dakota separates general contractor amount eligibility from trade competency and specialty-program credentials. Use the project scope to determine which agency must be checked.
Broad contractor license for jobs over $4,000; class is determined by contract amount.
Contracting Master, Contracting Class B, Contracting Power Limited and individual electrical credentials.
Master/Journeyman plumbing plus sewer/water, water conditioning and backflow categories.
Company asbestos contractor licensing plus worker, supervisor, inspector and specialty disciplines.
Water well contractor, pump/pitless installer, monitoring well contractor and geothermal system driller.
Fire-protection system plans route to the local AHJ or State Fire Marshal when no local authority applies.
PE, PLS, commercial-practice, architect and landscape-architect credentials affect filings and plan authority.
Expand each category for the practical TigerLeads routing logic used to match North Dakota permit descriptions to contractor classes, licensed trades and specialty providers.
Class A is over $500,000; B up to $500,000; C up to $300,000; D up to $100,000 per job.
Use on contractor work above $4,000, then verify any specialty credential the permit scope requires.
Contracting Master, Contracting Class B and Contracting Power Limited are the key business-contracting statuses in the source.
Do not route contractor work from Journeyman status alone; verify contracting status and SOS requirements.
Master Plumber and Journeyman Plumber are core statewide plumbing credentials.
Use the Plumbing Board for plumbing permits and verify contractor licensing above the SOS threshold.
Separate contractor and installer credentials cover building sewer and water service.
Keep sewer/water service distinct from general plumbing in lead matching.
Water conditioning contractor/installer and certified backflow tester are separate Plumbing Board categories.
Use the narrowest matching specialty when the permit description identifies treatment or backflow work.
DEQ licenses asbestos contractors and certifies workers, supervisors, inspectors and related disciplines.
Route demolition/renovation asbestos signals to DEQ-qualified firms rather than generic contractors.
DWR categories cover water well contractors, pump/pitless installers, monitoring wells and geothermal drilling.
Match drilling versus pump installation versus monitoring/geothermal to the exact credential.
The source treats fire-protection system plan acceptance as a review gate, not a contractor class.
Check the local AHJ first; use the State Fire Marshal when no local authority applies.
Professional engineering, surveying, architecture and landscape architecture credentials affect plan preparation and filings.
Store professional-design authority separately from contractor and trade licenses.
The source does not identify a separate statewide HVAC board comparable to electrical or plumbing.
Check the SOS amount class, route regulated electrical/plumbing sub-scopes to their boards, then verify local mechanical permit rules.
Search by acronym, trade, agency or scope. These tags come from the supplied North Dakota source and are designed for contractor verification and permit-to-trade matching.
Over $500,000 per job; Secretary of State contractor class.
Verify ↗Up to $500,000 per job.
Verify ↗Up to $300,000 per job.
Verify ↗Up to $100,000 per job.
Verify ↗Electrical contracting status through NDSEB.
Verify ↗Restricted electrical contracting status described in the source.
Verify ↗Power-limited electrical contracting status.
Verify ↗Core Plumbing Board credentials.
Verify ↗Contractor / installer credentials for sewer and water service.
Verify ↗Contractor / installer credentials for water-conditioning systems.
Verify ↗Certified Backflow Assembly Tester.
Verify ↗DEQ company license for asbestos abatement activities.
Verify ↗DEQ asbestos inspection certification discipline.
Verify ↗DWR drilling and water-well contractor license.
Verify ↗DWR pump and pitless-unit installation credential.
Verify ↗Monitoring well contractor and geothermal system driller.
Verify ↗Professional credentials through the PELS Board.
Verify ↗Professional design credentials through the architecture board.
Verify ↗Local mechanical, building and permit overlays.
Verify ↗The permit tells you what is happening. North Dakota’s license layer tells you the amount class, trade authority and specialty credential that should shape the lead audience.
Check job value and class limit, then local permit requirements.
Verify NDSEB contracting status; do not rely on Journeyman status alone.
Confirm Plumbing Board credential and SOS contractor threshold.
Use the specialized service credential rather than generic plumbing only.
Route equipment installation/repair to the conditioning credential family.
Match to the listed backflow testing credential.
Check DEQ credentials before generic demolition outreach.
Match the exact drilling or pump credential.
Confirm plan acceptance with local AHJ or State Fire Marshal.
No separate statewide HVAC board identified in source; check local mechanical rules and split out electrical/plumbing scopes.
Use the state source that owns the credential. The supplied source also emphasizes local AHJ checks for mechanical and project-specific permit requirements.
Short answers for contractor verification, permit routing and lead qualification.
TigerLeads.AI helps contractors, trades and suppliers act on permit signals earlier — with the licensing context needed to target the right North Dakota opportunity.