What are requirements to obtain a security clearance?

Hi, guys!
Do you know, can a foreign national (not US citizen) obtain a security clearance?

I don't want any Nukes. I just want a job in the field that I love and studied so hard. I guess aerospace engineering was not the best choice for a non-citizen, huh?

Foreign Nationals can have certain levels of security clearance in the United States. There are many foreign nationals (mostly Canadians) working at NORAD. There are several foreign nationals working at Los Alamos, Oakridge, and Livermore. Note that I said they can have certain levels of clearance. Obviously, they cannot have the highest level of clearance, but then, many USA born citizens cannot get those clearances either
And all of the different levels of clearance are on a need to know basis. The holder of a clearance might be approved in advance for a higher level that what shows on his ID badge, and not even know he has the higher clearance.

The answer is short. No.

There are jobs (I'm assuming this is Military related) that you can get and not be a US Citizen, but don't expect them to hand you the blueprints to our Nukes.

Depending on the type of clearance you are requesting, there are different forms you have to file. For non-sensitive positions the documentation is not as thorough, but the clearance isn't as high. GSA SF85 form.

Depending on your request, and what agency it is for, will depend on your rating and/or receiveing clearance.

For sensitive positions (national security) the background check is quite extensive. A foreign national will not be able to obtain a rating, I am sure on this. You must be a US Citizen, with a SSN. GSA SF86 form.

You can get the forms here, and this will help you get a better understanding of what they are seeking. I believe your attempt will receive a denied decision, due to lack of US citizenship for national security based positions.

http://www.gsa.gov/Portal/gsa/ep/formsli...