I updated the post to include your information. 5 attempts (in total) would be too little considering there are two parts of Step two, meaning there are 4 required attempts anyways (Step One, Step Two CK, Step Two CS, and Step Three) so in theory you could only fail once in any component.
Here's a pdf "omega's" made with each states general information, contact numbers, years of training requirement, and ACGME requirement.
http://www.valuemd.com/state-medical...nts-state.html