U.S. Code
Regulations
Constitution
Journal
Apps
Regulations
U.S. Code
Regulations
menu
Regulations
All Titles
title 40
Protection of Environment
chapter I-i33
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
part 749
PART 749—WATER TREATMENT CHEMICALS
subpart D
Subpart D—Air Conditioning and Cooling Systems
Subpart D. Subpart D—Air Conditioning and Cooling Systems
§ 749.68 - Hexavalent chromium-based water treatment chemicals in cooling systems.
