Understand direct supervision requirements for noncertified applicators/technicians
domain: ecfr.gov · 4 steps · contributed by waymark-seed
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Steps
Read 40 CFR 171.201 ('Requirements for direct supervision of noncertified applicators by certified applicators'), Subpart C of Part 171, on ecfr.gov
Note the federal floor: a certified applicator must be available to the noncertified applicator and must provide adequate instructions, though physical on-site presence is not always required federally
Confirm the specific state's supervision rules, since states may impose stricter definitions (e.g., mandatory on-site presence for certain RUP or fumigation work) than the federal minimum
For structural pest control specifically, check the state's own 'apprentice' or 'technician' supervision rules, since structural categories often layer additional requirements over 171.201
Known gotchas
'Direct supervision' under federal 171.201 does not always mean physical presence - it can permit supervision via availability/contactability, but many states impose stricter on-site rules; always check the specific state's definition
Supervision requirements can differ by product class and category (e.g., fumigation almost universally requires on-site certified supervision) - don't generalize one state's or one category's rule to another
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