Here are some resources you may find useful. Let us know if you unearth others you think area businesses might find helpful.
U.S. Department of Labor – http://www.dol.gov/
OSHA – http://www.osha.gov/
Bureau of Labor Statistics – http://www.bls.gov/
Fair Labor Standards Act (FLSA) – http://www.dol.gov/whd/flsa/
IRS – http://www.irs.ustreas.gov/
INS – http://www.uscis.gov/portal/site/uscis
Georgia Department of Labor – http://www.dol.state.ga.us/