Pipe Welding or Pipeline Welding is used in many industries. Pipe welders and Pipe welding involves
SMAW, GMAW, TIG, SAW, FCAW , SMAW 6g Pipe Uphill Welding processes.
Important part of the training is welding inspection. Here are some useful links:

AVTEC - Alaska , Lincoln Electric , Illinois Welding School, Black River Technical College , National Welding - Inspection,
San Diego Continuing Education , Texas State Technical College , Hobart Institute of Welding , Carl Sandburg College , Industrial Training Solutions