Questions & Answers for Physical Therapists and Physical Therapy Assistants. Introduction. Effective September 1, 2009, to renew your registration as a physical therapist or physical therapist assistant, New York State Education Law requires completion of 36 contact hours of approved continuing education in each three-year renewal period.
CO (both letters capitalized) is the standard abbreviation for  Colorado. Colorado is a state in the United States. The abbreviation of  Colorado is CO.Colorado is part of â¦ Western and Southwestern United  States.E The standard two letter abbreviation for the state of Maine is ME.
To date, only one change has been made to the abbreviations issued in 1963. In November 1969, at the request of the Canadian postal administration, the two-letter abbreviation for Nebraska, originally NB, was changed to NE, to avoid confusion with New Brunswick in Canada. A current, complete list of abbreviations, including U.S. territories and street designations, is available online at www.usps.com/ship/official-abbreviations.htm.