OSHA proposes to amend its existing air contaminant standards that set PELs for the maritime, construction and agriculture industry sectors. Since ACGIH recommendations were compiled, there has been new research and many new substances have entered general use. As a result both the ACGIH and NIOSH have recommended new or lower exposure limits for many substances. OSHA is proposing to issue more protective exposure limits for approximately 210 to 220 additional limits which currently exist in general industry, maritime, construction and agriculture. Diseases that will be reduced include heart disease, cancer, neurological disorders, lung, liver and kidney disease, eye disorders, moderate and severe irritation and other disorders. The new standard will prevent approximately 8 to 13 deaths and 31,000 illnesses per year. A new section 1915.1000 for shipyards, section 1917.1000 for maritime and a new section 1918.1000 for longshoring will be added. For construction section 1926.55 will be revised and for agriculture a new section 1928.1000 will be added. Written comments should be directed to OSHA Docket Office, Docket No. H-020A, room N-2834, USDOL, 200 Constitution Ave., N.W., Washington, D.C. 20210, telephone (202)523- 7894.