In business documents,abbreviations such as U.S.A.and M.B.A.must always contain periods.

Abbreviations

Shortened forms of words or phrases used to save space or avoid repetition for ease of communication.

U.S.A.

A country located in North America, comprising 50 states, a federal district, five major self-governing territories, and various possessions.

M.B.A.

Master of Business Administration, a graduate-level degree focusing on business management, strategy, and leadership.