Matt
You shouldn't have to stop at any scale if you're not stopping at them now.

The BAC for CDL is .04, however any amount at all <.04 will get you 24 hours out of service.
*Supposedly* these limits are only while operating a CDL classed vehicle....
http://www.nsp.state.ne.us/findfile.asp?id...%20farm%20truck?

jerry