# Federal Register
1 - 1910.134(a) - 90:28286-28291 - Formaldehyde
2 - 1910.134(a) - 90:28349-28354 - Cotton Dust
3 - 1910.134(a) - 79:61383-61438 - Chemical Management and Permissible Exposure Limits (PELs) - PDF