Pesticide applicator license requirements in District of Columbia

The District overhauled its entire pesticide applicator rulebook effective February 6, 2026, amending four chapters of Title 20 at once. If you studied against a pre-2026 category list, a chunk of what you learned is now wrong.

What the February 2026 rewrite changed

The final rulemaking published at 73 DCR 001173 rebuilt 20 DCMR Chapters 22 through 25. The practical effects for anyone certifying now:

• A minimum age of 18 was written into the rules for the first time, for commercial applicants, private applicants, and registered technicians alike.
• Fumigation became its own category with soil and non-soil subcategories, and Sewer Root Control was carved out as a standalone category. Use a fumigant on sewer roots and you now need both.
• Retake waiting periods were extended into the private applicator rules: 30 days after any failure, 180 days after three consecutive failures on the same exam.
• Renewal training was quantified. Instead of a vague refresher requirement, a renewing applicator now completes four credits per category per year, with one credit defined as a half hour, and the course must touch integrated pest management or other least-toxic practices.

The District is not a state, and its category list shows it

DC has no county agricultural commissioner, no land-grant extension service running county exam sites, and almost no farmland. The category list reflects that. Alongside the familiar national families there are categories you will not find in an agricultural state: antifouling paint on watercraft and cooling tower biocides sit as aquatic subcategories, utility pole work is a right-of-way subcategory, and sewer root control stands alone. Private Applicator Pest Control exists as a category, but it is a thin one, holding only general agricultural and aerial subcategories.

Certification and licensing are two different things

Passing the exams gets you certified. It does not get you licensed. The license runs through the District’s Basic Business License process, and DOEE’s own instructions route applicants through preliminary forms ES-774 and ES-775 before Basic Business License paperwork is mailed out. Two consequences worth planning around:

• Certify and then let a year pass without completing licensing, and the certification is void. You re-sit the exams from scratch.
• Your certification names your employing pesticide operator. Work for two operators and you need a separate certification for each.

Applicators carry a photo identification card issued by the Pesticide Program and must have it on them while applying.

Exams

Two written exams, a general core and a category, plus a practical where the category calls for one. Passing is 70 percent of total points. Exams are proctored, government-issued photo ID is required at the door, and the only reference materials allowed are the ones the proctor hands out and collects. Since 2012, District law has also required applicants to demonstrate mastery of integrated pest management principles as part of the competency determination, which is unusual: most states treat IPM as recommended practice rather than a testable certification standard.

Fees and terms

Commercial certification is valid one year; private certification is valid two. A District agency employee pays no certification fee at all, a provision added in the 2026 round.

Renewal

Annual, for commercial applicators. You present an attendance record from an approved course sponsor showing your name, certification number, and arrival and departure times for each session, and you complete four credits per category of certification each year. Miss renewal by more than a year and you are treated as a brand new applicant.

Registered technicians

A technician works under a certified applicator’s direct supervision, must be 18 or older, and has 180 days from application to pass the general core exam. After any three-year term as a registered technician, the individual must sit a category exam and either become certified or start another three-year technician term.

Sources

• DOEE, Get Certified as a Pesticide Applicator: doee.dc.gov/service/get-certified-pesticide-applicator
• DOEE Notice of Final Rulemaking, Pesticide Operations Regulations, 73 DCR 001173, effective 2/6/2026, via DCRegs: dcregs.dc.gov
• 20 DCMR Chapters 22 through 25 (categories, competency, licensing, fees), via DCRegs
• D.C. Official Code sections 8-403 through 8-408
• DOEE Toxic Substances Division: (202) 535-2600

The pesticide label is always the controlling legal document for how a product may be applied, regardless of which certification you hold. For the ordered national sequence, see how to become a pesticide applicator, the category finder, and the calibration workflow.