Is there any requirement for the gas piping for the above ground? What is the min requirement fron the ground? When the gas piping is located outdoor and before entering the home.precisely the piping is between the meter and before entering the home.
There is no minimum height requirement from the exterior gas pipe to grade, it just can't touch the ground.
Enbridge no longer wants piping run low along the wall in garages due to vehicular damage though.
Download the Builder's Technical Bulletin here - http://www.hvactechgroup.com/article.php/20140405102136638