Staff Sgt. Adam C. Thorogood of Nashville, Tennessee, said the ink covering his left arm from the elbow to the wrist isn't harmful, but the Army is using the body art against him and stopping him from joining the 160th Special Operations Aviation Regiment at Fort Campbell, Kentucky.
Thorogood sued Thursday in U.S. District Court in Paducah, Kentucky, seeking to have the new rules declared unconstitutional.
The regulations went into effect in March and ban any soldier with tattoos from seeking a promotion to warrant officer or commissioning as an officer.
An Army spokesman did not immediately return a message Thursday.
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