Navy
Regulations 
Navy
Regulations ART.
592. The uniform which is or may be established, shall be worn
by all officers who may be attached to any vessel, navy yard,
station, recruiting service, or hospital, for duty, except when
they shall be absent from the station.
ART.
593. All officers are to conform strictly to the uniform which
is or may be established, and are prohibited from wearing the
navy button upon any article of dress which does not conform to
the prescribed uniform.
ART.
594. Officers are expected to wear their uniform whenever they
make an official visit to the President of the United States and
the Secretary of the Navy.
ART
595. Officers are to wear their uniform when acting as members
of a court martial, or court of inquiry, or when attending such
courts as witnesses, or in any other official capacity.
ART.
596. The undress uniform shall be worn upon such courts, unless
the officer convening the same, or the president of the court,
shall specially order the full dress to be worn.
ART.
597. Officers constituting, or appearing before boards of examination,
shall wear their undress uniforms.
ART.
598. Officers are strictly prohibited from wearing their uniform
when suspended from duty by sentence of a court martial.
ART.
599. Officers on furlough are recommended not to wear their uniform
except on special occasions.
ART.
600. Petty officers shall wear the following marks of distinction:
Boatswain's mates, gunner's mates, carpenter's mates, masters at arms, ship's stewards, and ship's cooks, by an anchor on the right sleeve of their jackets in winter, and frocks in summer.
Quartermasters, quarter gunners, captains of forecastles, captains of tops, armorers, coopers, ship's corporals, and captains of the hold, by an anchor, in the same manner, upon their left sleeve.
The anchor shall be not more than three, nor less than two inches in length, placed half way between the elbow and shoulder, upon the front of the sleeve: it shall be white when worn on a blue garment, and blue when worn on a white garment.
ART. 601. The outside dress clothing of the petty officers, seamen, ordinary seamen, landsmen, and boys, shall consist of blue cloth jackets and trowsers, blue vest, blue cloth cap or black hat, black handkerchief, and shoes, when the weather is cold; when the weather is warm, it shall consist of white frock and trowsers, black or white hats, or blue cloth caps, as the commander may direct, having regard to the convenience and comfort of the crew, black handkerchiefs and shoes.
Source: U.S. Congress. House. Regulations - Navy U.S.:
Message from the President of the United States, Transmitting
the Rules and Regulations (Prepared by the Board Revisions) for
the Government of the Navy of the United States. 23d Cong.,
1st sess., 1833, House Doc. No. 20. [See chapter 42, "Uniform,"
pp.73-74]
Note: The text is reproduced here exactly as in the original,
following the original use of capitalization and italics.