Navy service uniform regulations

Service dress uniforms are worn for official functions not rising to the level of full or dinner dress. They are also commonly worn when traveling in official capacity, or when reporting to a command. The civilian equivalent is a business suit. They are seasonal, with the white uniform worn in summer and the blue in winter. Service Dress Blue may be worn year round for travel only. Ribbons are worn over the left breast pocket in all variations of the service dress uniform. The All-Weather Coat, Overcoat, or Reefer may be worn with service dress uniforms in cold or inclement weather.