COMDTINST 10550.25D — Electronics Manual

COMDTINST 10550.25D governs Coast Guard electronics maintenance, life-cycle management, and associated maintenance safety policies.

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  • Publication number: COMDTINST 10550.25D
  • Title: ELECTRONICS MANUAL
  • Date: 5/16/2024
  • Proponent: CG-672

View COMDTINST 10550.25D on armypubs.army.mil


It covers electronics support organization, safety practices, protective equipment, batteries, hazardous materials, RF RADHAZ signs, and C5I certifications. It also requires controls for test equipment tracking, labeling, storage, calibration, shipping, records, and replacement.

Applies to: All Coast Guard unit commanders, commanding officers, officers-in-charge, deputy/assistant commandants, chief of headquarter directorates must comply with the policies contained.

Topics covered

  • Electronics maintenance safety
  • Tower Climbing certification
  • C5I system installations
  • Lithium battery handling
  • RF RADHAZ warning signs
  • Test equipment calibration
  • Test equipment inventory management

Questions and answers

What does COMDTINST 10550.25D require for Coast Guard unit commanders and officers?

All Coast Guard unit commanders, commanding officers, officers-in-charge, deputy/assistant commandants, chief of headquarter directorates must comply with the policies contained. (paragraph 2)

Can personnel work alone on electrical or electronic equipment?

Do not work alone. A safety observer, qualified in CPR and first aid, must always be present and have unobstructed access to the power panel circuit breakers for the equipment being repaired or maintained. (paragraph 3)

How must lithium batteries be handled?

Do not pierce, crush, burn, or intentionally drop. (paragraph 2)

What is required for equipment containing PCBs?

Transformers and capacitors must be identified as containing PCBs and inspected weekly for signs of leakage. (paragraph 3)

What calibration label must SPETERL test equipment have?

All test equipment listed on a unit’s SPETERL must be calibrated and labeled with a calibration facility's certification sticker identifying whether the equipment passed calibration except for specific equipment items that do not require calibration. (paragraph 2)

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