Which agency adopted the current OSSF Rules and made several revisions since?

The correct agency that adopted the current On-Site Sewage Facilities (OSSF) Rules and has made several revisions since is the Texas Commission on Environmental Quality (TCEQ). TCEQ is responsible for ensuring that environmental quality standards are met in Texas, including those governing the management of on-site sewage facilities.

Through their authority, TCEQ establishes regulations that ensure safe and effective waste management practices, protect public health, and preserve the environment. Their ongoing revisions reflect updates based on new research, technological advances, and changing environmental conditions, which are critical for maintaining optimal standards in sewage management.

The other agencies listed, such as the Environmental Protection Agency (EPA), the Occupational Safety and Health Administration (OSHA), and the Centers for Disease Control and Prevention (CDC), have different primary focuses. The EPA deals with environmental protection at the federal level, OSHA is focused on occupational health and safety regulations, and the CDC primarily addresses public health matters including disease prevention and health promotion. Thus, while they may intersect in areas concerning public health and environmental regulations, TCEQ is the specific authority for OSSF rules in Texas.