The US regulator of pipelines, PHMSA, has finalized the rules relating to gas distribution mains. The link takes you to the final version of the document 49 CFR part 192 http://primis.phmsa.dot.gov/dimp/docs/DIMPFINALRULE.PDF

This should bode well for Russell because many gas distribution mains cannot be inspected by MFL Tools.

The Russell See Snake™ Tools are ideal for inspection of pipelines with low flow, internal liners and scale.