Problem at work

At the beginning of 2015 our boss implemented a new policy dealing with our clientele. Even though the new policy isn't related to my job directly, the day it went into effect, the co-worker with whom it directly deals was "out sick". So, it fell on me to tell quite a lot of people about the new policy, and it involved paying a deposit for something, which they had never had to do before. Naturally, since this was new, most of the people were not happy about it and gave me a lot of flak about it. I know they weren't really angry at me, they were just not happy with the new policy. But I explained it as well as I could, and eventually everyone I spoke with understood and did what was requested. Here's the issue: the co-worker whose job this policy directly affects isn't implementing the policy! Her office is right next to mine, I can hear her phone conversations, and I also am in charge of accounts payable, so I know for a fact that she's NOT telling our clientele about the new policy. Fine. I'm not the boss, and I can't make her do it. But I'm becoming more and more livid that I received all kinds of grief because I followed through with something that our boss said do, and yet she's not doing it, so she's not getting any grief about it. Our boss has no clue she's not doing it. He's kind of passive aggressive, and I guess he just assumes that she's doing it. I feel like if I say something to him, I just sound like a tattle tale. I doubt that there's a reasonable solution, but if anyone has one, please let me know. My problem right now is I'm becoming more and more angry about this, as I am continuing to implement the new policy and she is not. So I'm still getting a lot of grief.

The new policy went into effect the beginning of 2015, it's now 9 month later. I would inform your boss that it's come to your attention that the new policy is not being applied/implemented to all of the company's clientele and could be become a problem in the future. This then becomes your boss to address the issue with her.

Thanks guys. Good suggestions. The main reason I haven't done this is because I know what will happen. We have had similar situations in the past where this employee hasn't followed through with something, and the boss has ALWAYS come to me and told me to handle it. He's well aware that I do half her job already. I've covered her a_s and corrected her mistakes more times than I can count. He knows about a few of these, but not all. So when this omission is pointed out to him, I'm 99.9% sure that he will tell me to call these people and let them know what's going on. Ugh. #more work for me ---- #more grief for me.

Was she notified of the new policy? then let the chips fall where they may...