Every ADAI pest control category, decoded.
This is the plain-English reference to every Alabama Department of Agriculture and Industries pest control license category — the detail companion to our ADAI licensing overview. Use it to confirm which category the work you’re buying actually requires, then verify the provider holds it.
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The two-tier model: person + business
The Alabama Department of Agriculture and Industries, Pesticide Management Section (1445 Federal Drive, Montgomery, AL 36107) administers all pest control licensing in the state. The statutory basis is Chapter 28, Title 2, Code of Alabama 1975 — the Alabama Pesticide Act / Pest Control Industry Act — with regulations in Chapter 80-1-13 of the Alabama Administrative Code.
Two licenses have to exist for any legitimate job:
- Individual certification — the applicator (the person) must be certified as a Private, Commercial, or Custom Applicator in one or more categories below.
- Business permit — the company must hold a Structural Professional Services Permit (for HPC/WDC/FC work) or a Horticultural Professional Services Permit (for ornamental and turf work).
When you vet a provider, you’re checking both: the person supervising your job holds the right category, and the company name on your contract matches the name on the permit.
Structural categories — the set that matters for your house
| Code | Category | Required for |
|---|---|---|
| HPC | Household Pest Control — Certified Operator | Opening or supervising general pest services from a main office: roaches, ants, rodents, spiders, silverfish, occasional invaders. |
| HPB | Household Pest Control — Branch Supervisor | Supervising branch offices under an HPC operation. |
| WDC | Wood Destroying Organi — Certified Operator | Termite inspection, the NPMA-33 / Alabama Wood Infestation Report, termite treatment, and termite bond writing. This is the “termite letter” category. |
| WDS | Wood Destroying Organi — Supervisor | Branch-level WDC work. |
| FC | Fumigation — Certified Operator | Whole-structure fumigation (sulfuryl fluoride / tenting). The FC exam is offered only through ADAI Montgomery — never online. |
| FB | Fumigation — Branch Supervisor | Branch-level fumigation supervision. |
| IIHC | Industrial, Institutional & Health-Related | Custodial healthcare and institutional applications — hospitals, schools, food plants. |
| OTPC / OTPS | Ornamental & Turf Pest Control | Landscape pests: lawn fire ant treatment, turf applications, ornamental spraying. |
The category mismatch to watch for in Mobile: termite work sold by an HPC-only company. Termite letters, treatments, and bonds all require WDC. If a “whole-home pest package” includes termite coverage, ask specifically who holds the WDC certification — name and number.
The categories you’ll rarely meet — but might hear cited
- PH (Public Health) — government vector-control programs, like the Mobile County Health Department’s mosquito surveillance and abatement work.
- AQ (Aquatic) — pesticide applications to ponds, lakes, and waterways.
- ROW (Right-of-Way) — utility and roadside vegetation management.
- FOR (Forest) — silvicultural pest control.
- AP / AA (Agricultural Plant / Animal) — crop and livestock applications.
- ACF (Agricultural Commodity Fumigation) — stored-grain and commodity fumigation, distinct from structural FC.
- D&R (Demonstration & Research) — university extension and research applicators.
- MS (Metam Sewer), WT (Wood Treatment), REG (Regulatory) — specialty and government categories.
Why list them? Because occasionally a provider waves an impressive-sounding certification that’s simply the wrong category for structural work. An agricultural fumigation card doesn’t authorize tenting your house; a right-of-way certification doesn’t authorize treating your kitchen. The category has to match the job — that’s the entire point of the system.
Alabama administers computer-based exams at eight testing sites, including Mobile, and honors reciprocity agreements with several neighboring states — but reciprocal applicators still need Alabama credentials to operate here. Full verification steps are on the ADAI licensing overview, and agency contacts live on the authority resources page.
License categories — what do homeowners ask?
Which category covers general home pest control?
HPC — Household Pest Control. That’s the certification behind routine residential service for roaches, ants, rodents, and spiders. Branch offices operate under HPB supervision tied to a main-office HPC.
Which category do I check before buying a termite bond?
WDC — Wood Destroying Organi, Certified Operator. Termite bonds, treatments, and the NPMA-33 report all require it. Ask for the WDC holder’s name and certification number, then confirm with ADAI at (334) 240-7240.
My quote includes tenting — what should I verify?
That an FC (Fumigation Certified Operator) is on the job. Many general pest companies legitimately subcontract fumigation to a licensed fumigator — that’s normal and fine — but ask who the FC holder is and verify them too.
Does one certification cover the whole company?
No — the company needs its own Structural Professional Services Permit, and certified operators must actually supervise the work. If the certified operator on file has no connection to the crew at your house, that’s a compliance problem worth reporting to ADAI.
Are the operators this site routes to certified?
Yes — Mobile Alabama Exterminators is a free dispatch and referral service, and every independent operator in the network holds current ADAI certification in the category their work requires. We encourage verifying it — that’s why this reference exists.
Category-matched, license-checked, dispatched.
Free to get matched, no obligation. The ADAI-licensed operator inspects, quotes, and treats under their own certification.
Free to check coverage. ADAI-licensed operators serving Mobile & Baldwin County, AL.
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