Which NFPA standard deals with service testing of in-service fire department ground ladders?

The NFPA standard that specifically addresses the service testing of in-service fire department ground ladders is NFPA 1932. This standard provides guidelines for the maintenance, inspection, and testing of ground ladders to ensure they are safe and effective for operational use.

NFPA 1932 outlines the procedures for conducting periodic testing, including the types of tests required, the frequency of those tests, and the criteria for assessing the condition of the ladders. These requirements are crucial for maintaining the reliability and safety of ground ladders used by firefighters during emergency response operations.

The other standards mentioned do not focus on the specific requirements for ground ladder testing. For example, NFPA 1560 deals with emergency service incident management and command, NFPA 1401 focuses on fire service training and education, and NFPA 1875 pertains to the standard on firefighter training programs. Therefore, NFPA 1932 is the appropriate answer for questions regarding the service testing of in-service fire department ground ladders.