SHIELD
Per pall reversed Azure, Sable and Argent a pall inverted Argent (Silver Gray) in the first a lions head erased and in the second a lions head erased facing to sinister both Or, langued Gules, teeth and eyes of the second, in the 3rd three chevronels couped reversed of the sixth, all within a diminutive bordure of the fourth (Silver Gray).
CREST
From a wreath Argent and Azure, four palm trees overall a Higgins landing craft bearing the designation P1020, all Proper, superimposed by a mullet flory reversed Gules edged Or charged with the representation of a signalman insignia of the first.
MOTTO
A scroll Gules lined Argent and inscribed GALLANTRY IN ACTION of the last.
SHIELD
The blue portion of the shield represents the waters of the Pacific and the shores of Guadalcanal, the location of Petty Officer Munro's service during World War II. The color black denotes his determination during his service in the Coast Guard in achieving the Signalman rating and becoming an entrusted coxswain of the Higgins Boat, and the white portion symbolizes his excellence and selfless actions in his heroics to rescue the Marines along the shores of Guadalcanal during the first major Allied offensive of World War II. The lion head on the left refers to the crest of the USCGC MUNRO (WHEC 724), commissioned in 1971 as the first Coast Guard cutter to be named after Petty Officer Munro. It faces to the left to honor the sacrifices of past Coast Guardsmen. The lion head facing to the right denotes the USCGC MUNRO (WMSL 755) as the second cutter to be named in honor of Petty Officer Munro. The lion head faces to the right as to fearlessly face future challenges of executing Coast Guard missions. The three chevrons refer to Petty Officer Munro's rank of First Class Signalman with the red symbolizing his courage, having died heroically on Guadalcanal on September 27, 1942.
CREST
The gold and red representation of the Medal of Honor refers to the United States Marine Corps and the Marines evacuated during Petty Officer Munro's voluntary rescue expedition. Although the majority of the Marine evacuees had been loaded onto boats, some remaining elements had difficulty embarking. Petty Officer Munro valiantly placed his Higgins Boat as a shield between the beachhead and the Japanese to protect the other boats and, in so doing, was mortally wounded. Petty Officer Munro was the first and is currently the only U.S. Coast Guardsmen to receive the Medal of Honor. The palm trees, the most prevalent growth on the Pacific Islands, represent the location where he perished.
MOTTO
The ship's motto originates from Petty Officer Munro's Medal of Honor citation. Petty Officer Munro gallantly gave his life for his country during the evacuation of a battalion of Marines trapped by enemy Japanese forces at Guadalcanal on September 27, 1942. His actions remain a testament to his courage and serve as a foundation for current and future Coast Guardsmen.
SEAL
The coat of arms as blazoned in full color on a white disc within a blue designation band, edged with a gold chain border and bearing the name USCGC MUNRO at the top and WMSL 755 at the base, in blue.