North American Trade Schools

The story of NATS begins in 1970 when the Diesel Institute of America (DIA) was founded by Sheldon Monsein. Sheldon’s idea for a training institute was born out of a need for additional qualified diesel mechanics to repair the hundreds of vehicles at his Central GMC/Kenworth, Inc. facility.

Soon after, DIA began its first class for diesel technician training in a 500-square-foot facility in Landover, becoming the first Maryland diesel trade school. As the word spread, the school grew, and Monsein opened another campus in 1983 in Grantsville, MD. In 1986, DIA began offering commercial truck driver training.

Available Programs

• Building Construction Technology
• Combination Welding
• CDL Training
• Diesel Technology
• Diesel Technology program with CDL training
• Electrical Technology
• Industrial Maintenance
• HRVAC training

North American Trade Schools Locations

• Baltimore, MD