Visit the Electronic Code of Federal Regulations Search Engine. To access "Part 403: General Pretreatment Regulations for Existing and New Sources of Pollution" perform the following: 

  1. In the box titled "All CFF Titles", SCROLL DOWN and SELECT "Title 40 - Protection of Environment"
  2. SCROLL DOWN and SELECT "Protection of Environment -- Volume 31"
  3. SELECT "SUBCHAPTER N - EFFLUENT GUIDELINES AND STANDARDS"
  4. SCROLL DOWN and SELECT "PART 403 - GENERAL PRETREATMENT REGULATIONS FOR EXISTING AND NEW SOURCES OF POLLUTION"