Workplace immunization programs are driven by OSHA standards, state regulations, and facility requirements. Key vaccines in occupational health include: Hepatitis B (required for bloodborne pathogen exposure per OSHA), Tdap/Tetanus (recommended for workers with laceration risk), Flu (required or strongly encouraged in healthcare), MMR (required for healthcare workers), Varicella (required for healthcare workers), and TB testing (required in healthcare, corrections, and shelter settings). Employers offering OSHA-required vaccinations must do so at no cost to the employee.