I would call TSA and ask.
The website to register is here. http://www.flymsy.com/msy-guest-pass/
Yes, you can go to the the Airport website and register for a guest passport. heres a few tips. 1. you must register at least a day in advance. 2. Visiting hours are between 11 am to 8 pm. 3. 50 visitors limited during weekdays. 100 limit on weekends. 4. one pass per person and one visit each month.
You and/or company will have to be a TSA member. As Frankie J said you can ask, or do a search via airline websites
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