S93 Supervise the Temporary Storage and Dispensing of Flammable or Combustible Liquids at Construction Sites (Citywide) Certification Exam

S93 Supervise the Temporary Storage and Dispensing of Flammable or Combustible Liquids at Construction Sites (Citywide) Construction firms across the city increasingly require supervisors to hold S93 certification before overseeing fuel and solvent operations on-site. Regulations mandate documented competency in hazard classification, proper containment protocols, and emergency response procedures—knowledge that employers verify through this credential. Sites handling diesel, acetone, or paint thinners depend on supervisors who understand ventilation requirements and spill containment specifics.