Promotion drug tests at fedex freight?

i currently work at fedex freight and have been for almost a year heard about a new opening coming soon so i decided to try get myself clean its been about 3 months since I've smoked I'm just wondering if I've been wasting my time not smoking or if i should just hold off until I've heard something about the job

Hold off. I'm starting to look for a job bt I'm only 2 weeks off weed.