I am a project manager for a real estate development firm. One of our clients is an automotive repair facility that also performs oil changes. All locations have a lube pit (basement) under the bays where oil changes are completed. Currently our architect and engineers are designing each of the facilities with ventilation systems in the lube bays. Prior to our company acting as the developer the client was not installing ventilation systems in the lube bay and never had a City or inspector require it. They are questioning our architects and engineers if this is required by code. My question is what code(s) specifically relate to this and show if it is or is not required?