Biosolids disposal and land-application regulations are governed by which regulation?

Biosolids disposal and land-application regulations are governed by which regulation?

• A. 40 CFR Part 503
• B. 40 CFR Part 403
• C. 33 CFR Part 320
• D. 29 CFR Part 1910

Answer: (A)

Biosolids disposal and land-application regulations are governed by a rule that specifically sets the standards and practices for handling municipal biosolids. This regulation, 40 CFR Part 503, is known as the Biosolids Rule under the Clean Water Act. It covers how biosolids can be disposed of or applied to land, including pollutant limits, pathogen reduction, vector attraction reduction, site management requirements, and monitoring/recordkeeping. That focused scope is why it’s the best answer for regulating biosolids. The other options address different areas—such as industrial pretreatment of wastes, coastal/maritime regulations, or general workplace safety—and do not govern biosolids disposal and land application.

Biosolids disposal and land-application regulations are governed by a rule that specifically sets the standards and practices for handling municipal biosolids. This regulation, 40 CFR Part 503, is known as the Biosolids Rule under the Clean Water Act. It covers how biosolids can be disposed of or applied to land, including pollutant limits, pathogen reduction, vector attraction reduction, site management requirements, and monitoring/recordkeeping. That focused scope is why it’s the best answer for regulating biosolids. The other options address different areas—such as industrial pretreatment of wastes, coastal/maritime regulations, or general workplace safety—and do not govern biosolids disposal and land application.