40 CFR §62.14420
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
You must have a fully trained and qualified HMIWI operator, either at your facility or able to be at your facility within 1 hour. The trained and qualified HMIWI operator may operate the HMIWI directly or be the direct supervisor of one or more HMIWI operators.