(3) A filling station, service station, garage or other dispensary offering fuel dispensing devices for self-service must:
- (a) Post one or more notification signs that are clearly readable by an operator of a motor vehicle stating which fuel dispensing devices are designated for self-service and which fuel dispensing devices are designated for attended service by an owner, operator or employee of the dispensary of Class 1 flammable liquids; and
- (b) Designate at least one person to provide attended service.