The minimum training requirements for FRO is 8 Hours.
OSHA states "First responders at the operational level shall have received at least eight hours of training or have had sufficient experience to objectively demonstrate competency in the following areas in addition to those listed for the awareness level and the employer shall so certify:
Knowledge of the basic hazard and risk assessment techniques;
Knowledge in selection and use of proper personal protective equipment provided to the first responder operational level;
An understanding of basic hazardous materials terms;
Ability to perform basic control, containment, and/or confinement operations within the capabilities of the resources and personal protective equipment available with their unit;
Ability to implement basic decontamination procedures; and
An understanding of the relevant standard operating and termination procedures."
So there you have it from OSHA! 8 Hour Initial ($79.95) for the original, 8 Hours for the annual refresher($39.95)