Entry regulations for american citizens

Passport and visa required.
Single-entry visa requires 1 application form and $16.50 fee, multiple-entry visa requires a $31.50 fee (money order only).
For a business visa, you also need a company letter stating purpose of your trip. If applying by mail, enclose a self-addressed prepaid airway bill or check payable to Federal Express, UPS, or DHL for return of passport.
AIDS test required for persons staying longer than 3 months.
For details, consult the Embassy of the Hashemite Kingdom of Jordan, 3504 International Dr., N.W., Washington, D.C. 20008 (202/966-2664) or nearest Consulate General: CA (415/546-1155), MI (248-/557-4377), NY (212/832-0119), or TX (713/224-2911).

Internet: http://www.jordanembassyus.org/
 

Vaccination

No vaccinating regulations on a direct entry from the US

  Caution: "Peel it, boil it or forget it!".