There are two provisions:

a.    Having been a member in good standing of a Bar of a court of general jurisdiction in any state or territory of the United States for a period of five years immediately preceding the filing of your application. 

or 

b.    Having been awarded a J.D. or LL.B. degree from a law school which, at the time of the awarding of the degree, was approved by the American Bar Association; having been admitted to the practice of law in any state or territory of the United States upon the successful completion of a written bar examination, with a scaled score of 133 or more on the Multistate Bar Examination (MBE) which the state or territory deems to have been taken as part of such examination, and a 75 scaled score on the Multistate Professional Responsibility Examination (MPRE).