The background check for getting a TWIC card does not appear to involve taking a drug test. However, those working in secure areas may be subject to drug and alcohol testing, according to information on the United States Coast Guard website.

Tim
Hi there, I'm Tim, author of tooslick.com. I’ve been experimenting with synthetic urine, additive, and various forms of detox for years now. With the knowledge I’ve acquired and the testimonials of hundreds people, I’d like to share how you can also benefit from these amazing products. This is the site where I show you how to do just that.
Discussions