CFR > Title 29 - Labor > SUBTITLE B—Regulations Relating to Labor > CHAPTER XVII—OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (parts 1900 to 1990) > PART 1915—OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR SHIPYARD EMPLOYMENT > SUBPART Z—Toxic and Hazardous Substances (§1915.1000 to §1915.1450) > 1915.1003—13 carcinogens (4-Nitrobiphenyl, etc.).