Lock Out / Tag Out Safety (LOTO)

LOTO Safety


The "Lockout/Tagout (LOTO)" procedure is a safety protocol used to prevent accidental or unintended startup of machinery and equipment during maintenance or servicing activities. The guidelines for electrical safety under LOTO include the following:

  Authorized personnel: Only trained and authorized employees should perform LOTO procedures.
  Locks and tags: Locks and tags should be used to physically prevent the activation of energy isolating devices.
  Energy isolation: All sources of hazardous energy must be identified and isolated before maintenance or servicing activities are performed.
  Verification of isolation: Before work begins, authorized employees must verify that the equipment is properly isolated and de-energized.
  Written procedures: A written LOTO procedure should be in place and followed by all authorized personnel.
  Group LOTO: In some cases, multiple workers may need to work on the same equipment. In these cases, a "group LOTO" procedure should be established to ensure the safety of all workers.
  Regular review: The LOTO procedure should be reviewed regularly to ensure its effectiveness and to identify areas for improvement


LOTTO / Tagout Periodic Inspection Form


NPSINST 6055.1 NPS Hazardous Energy Control Program

29 CFR 1910.147, The Control of Hazardous Energy (lockout/tagout)

OPNAVINST 5100.23 Chapter 24, The Control of Hazardous Energy

FE types




The Types of Fire Extinguishers


Class A extinguishers are for use on fires that contain ordinary combustibles such as paper, wood, cloth plastics, etc.


Class B extinguishers are for use on fires containing flammable liquids like oil, gasoline


Class C extinguishers are for fires involving electrical equipment such as tools or appliances.


Class D extinguishers are for use on combustible metals. This type of extinguisher is generally only found in factories that work with these particular metals.