Article 21 guarantees (among other things) discrimination because of union membership or activities. AS LONG AS THEY DONT INTERFERE WITH THE EMPLOYER'SBUSINESS. TO ME THIS WOULD MEAN YOU CAN DISCUSS UNION ACTIVITIES AS LONG AS YOUR STILL WORKING.EX NOT SLOWING DOWN ETC. Passing out flyers encouraging PTers (in a RTW state) to join the union, or passing out Teamster-issued flyers to union members encouraging a "YES" vote are example of union actives. But would what happen if you were to do so on the clock? Would Article 21 protect you, even though it doesn't mention 'provided the employee does not do so while on the clock.'
As with any employer, UPS has a legal right to censor an employee actively representing the company (e.g. somebody on company time); a CBA cannot supersede UPS's legal right.
Honestly, it should be common sense.
