are authorized to wear G-1 seal-brown goatskin-leather flight jackets, with warfare insignia listed on a name-tag (rank optional) over the left breast pocket, either permanently stitched to the leather or attached with a Velcro hook-and-loop fastener. These jackets were previously adorned with various "mission patches," which indicate places the wearer has served. Today, patches on the G-1 are limited to a maximum of three in addition to the name-tag, i.e., a unit insignia on the right chest pocket, an aircraft type insignia on the right sleeve and an aircraft type insignia or embroidered U.S. flag on the left sleeve. Also, the Navy issues foul-weather or cold-weather jackets as appropriate for the environment, which are generally olive or Navy blue in color. These jackets are considered "Organizational Clothing". They do not belong to the sailor, and are not allowed for wear off of the ship unless working in the near vicinity of a ship. Special uniform situations Navy Bands All enlisted members of the U.S. Navy Band, Washington, D.C. and the U.S. Naval Academy Band, regardless of rate, wear chief petty officer-style dress uniforms (i.e. Service and Full Dress Blues and Whites and Dinner Dress). Navy personnel attached to Marine Corps units As the Marine Corps does not have medical personnel, chaplains, and certain lawyers and divers, the Navy provides them. These officers and enlisted of the Fleet Marine Force include doctors, dentists, nurses, hospital corpsmen, medical service sailors, chaplains, religious program specialists, Naval Gunfire Liaison Officers, divers, lawyers, legalmen, and Naval Academy midshipmen who are selected for marine officership. Because of this relationship, these personnel are authorized to wear U.S. Marine Corps utility (desert/woodland) uniforms with Navy rank insignia replacing the Marine insignia for enlisted personnel (Navy and Marine officer rank insignia are identical) and with a "U.S. Navy" patch replacing the "U.S. Marines" one. They wear the 8-point utility cover, but it lacks the Marine Corps emblem. Additionally, Navy personnel attached to Marine units can elect to wear Marine service uniforms, with Navy insignia. Those opting to wear Marine Corps service uniforms must meet Marine Corps grooming and physical appearance standards, which are more stringent than Navy standards. This does not apply to the MARPAT uniforms, as this uniform is required for wear in the field when attached to Marine units, regardless of adherence to Marine Corps grooming standards. Navy personnel are not authorized to wear the Marine Corps