USPHS Commissioned Corps Officers who have been detailed to serve in the Coast Guard wear standard Coast Guard uniforms, but with specific modifications that serve to indicate their parent branch of service. These include USPHS cap devices, the USPHS Commissioned Corps sleeve device (in lieu of the Coast Guard shield), USPHS collar insignia, and USPHS insignia on hard and enhanced shoulder boards.
Enhanced shoulder boards are similar to the USPHS female hard shoulder boards, with a hard board on top and an open-ended elastic tube on the bottom, allowing it to be slid over epaulettes. Coast Guard regulations call for the wear of enhanced boards with the long- and short-sleeved Light Blue Shirt (worn with the Service Dress Blue “Bravo” and Tropical Blue uniforms), the Cardigan and Wooly-Pully sweaters (but not if worn with the Winter Dress Blue uniform), and on Bridge Coats manufactured with epaulettes.