Hello, and welcome.
There are various ways to apply to be a TSA Agent. You can attend classes to find out what is required for the job and then learn what you have to do. You can find more information here:
If you don't want to attend a school, you can apply directly through TSA/Homeland Security:
Click on "Apply for a job with the Transportation Security Administration." from that page.
There are many different jobs listed on various job sites, for part time jobs and it also depends in which area you're looking, so check out what I sent you and then, if you have any further questions, please reply back and let me know.
I wish you much good luck!
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