- Maryland Department of Transportation (Baltimore City County, MD)
- … technician certification. C) Must possess a "Type II, and Type III ," or "Universal" EPA Refrigeration Technician certification. Additional Information TO ... or trade school or formal training in the HVAC field . -Must have thorough knowledge and understanding in the...call 711 TTY Users May Also Call Their Telecommunications Relay Service The MDOT MTA is an Equal Opportunity… more