Final answer:
Work center supervisors and designated HMC&M Petty Officers are required to complete HAZMAT storage and handling training within a specific timeframe after assignment.
Step-by-step explanation:
The requirement is for all work center supervisors and designated HMC&M Petty Officers to complete formal or local HAZMAT storage and handling training within a certain number of days after assignment. The question does not specify the exact number of days, so it is important to refer to the applicable regulations or guidelines provided by the organization or institution.