U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 30Chapter IPart 90Subpart C - Subpart C—Sampling Procedures
§ 90.201 - Sampling; general and technical requirements.
§ 90.202 - Certified person; sampling.
§ 90.203 - Certified person; maintenance and calibration.
§ 90.204 - Approved sampling devices; maintenance and calibration.
§ 90.205 - Approved sampling devices; operation; air flowrate.
§ 90.206 - Exercise of option or transfer sampling.
§ 90.207 - Quarterly sampling.
§ 90.208 - Respirable dust samples; transmission by operator.
§ 90.209 - Respirable dust samples; report to operator.
§ 90.210 - Status change reports.
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