OSHA and Centers for Disease Control links to documents and safety rules.
Here is the link to OSHA's page on hazardous drugs:
http://www.osha.gov/SLT/hazardousdrugs/index.html
Here is the link to the Centers for Disease Control's page on occupational exposure to antineoplastic agents (cytotoxic and cancer chemotherapy drugs):
http://www.cdc.gov/niosh/topics/antineoplastic