Which rates are compressed to become CUCM?

The correct answer signifies that the rates EACS (Explosive Ordnance Disposal), BUCS (Builder Constructionman), and SWCS (Seabee Combat Warfare Specialist) are compressed to form the CUCM (Constructionman). In the Navy, rate compression occurs to streamline the number of available job classifications or ratings. This is often done to address changing needs within the fleet and improve the efficiency of personnel management.

In this particular case, merging these specific rates under CUCM allows for a more versatile and capable workforce that can take on various construction-related tasks, which is essential for mission readiness. The skills and competencies from the original rates contribute to a broader training foundation in construction and repair, consolidating roles to ensure that the Navy has proficient personnel in critical areas of construction work. This kind of structural change also reflects the evolving nature of naval operations, where multifaceted skill sets are increasingly valued.

The other rates listed in the other choices represent different specialties that do not converge into CUCM, indicating a focused effort in this particular area of training and operational efficiency.