 While the pattern of this corps device remained the same, uniform regulations issued in 1919 specified that it was to be embroidered in gold instead of silver and worn on the sleeve of frock, evening dress, and blue service coats, above the gold lace strips, and on shoulder marks for white service coat and overcoat.By these same regulations the light blue cloth worn under the sleeve strips, and worn on the shoulder marks since 1899, was abolished as a distinction of the corps, however is still present in the light blue color of the stripes worn by enlisted, pay grades E-3 and below in the Navy's construction field.In 1939 the CEC was composed of 126 active officers.