1. A. Guarding.

   1. (1) The owner shall ensure that machinery is guarded to prevent contact with belts, fan blades, or similar moving components.

   2. (2) Guards shall be:

      1. (a) Designed to perform a specific task;
      2. (b) Properly secured; and
      3. (c) Properly maintained in a condition consistent with the intent of the guard’s design.

   3. (3) Before a guard is removed for maintenance purposes:

      1. (a) The equipment shall be locked out or tagged out; and
      2. (b) The guard shall be replaced before normal operation is resumed.
   4. (4) A guard shall be designed so that it does not pose a hazard itself.

2. B. Portable Electric Generators.

   1. (1) A portable electric generator is not required to be grounded if the portable electric generator:

      1. (a) Supplies only equipment mounted on the generator; or
      2. (b) Supplies power to the equipment through receptacles mounted on the generator that are connected by plug and cord and single extensions.
   2. (2) If a portable electric generator does not comply with §B(1) of this regulation, the owner shall ensure that a grounding electrode, such as a ground rod, is used for any fault current.
   3. (3) A portable electric generator shall be listed and labeled by a Nationally Recognized Testing Laboratory.

   4. (4) A portable electric generator may not be located:

      1. (a) Near user or pedestrian traffic; or
      2. (b) In locations that may be hazardous.

Authority: Business Regulation Article, §§3-204(c), 3-307—3-313 and 3-402, Annotated Code of Maryland

Effective date: January 21, 2013 (40:1 Md. R. 20)

Regulation .01B amended effective November 1, 2022 (49:21 Md. R. 951)

Regulation .03B amended effective November 1, 2022 (49:21 Md. R. 951)

Regulation .10 amended effective November 1, 2022 (49:21 Md. R. 951)

Chapter revised as an emergency provision effective March 4, 2026 (53:6 Md. R. 285); emergency provision adopted effective May 11, 2026 (53:9 Md. R. 412)