The Sihk activists already made sure they can.
In January 2014, the Pentagon relaxed its rules to allow waivers for short, well-groomed beards and head coverings for service members whose religious tenets dictate their wear.
The new instruction updated the rules to include religiously based grooming and body art under its definition of religious apparel, such as jewelry, which was previously allowed. Service members must apply for a waiver, to be updated with each change of duty station, but conservative, well-groomed beards are covered.
A spokesman for the chief of naval personnel told Navy Times he couldn’t comment on the specific case, but that the Navy makes all accommodations possible to allow sailors to practice their religions while maintaining unit cohesion and keeping the mission-first priority.