DPO is an abbreviation for the German word "Diensthundpruefung" which, translated into English is "Service Dog Examination." In the German language, the term Service Dog means the same as the English term Patrol Dog. The DPO has been used for over 50 years as a baseline performance standard for federal, state, and military agencies worldwide.
There are three versions of the DPO Regulations. They are the:
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