Do Not Block Electrical Panel Floor Marking, OSHA Compliance Kit. 16" sign, 2" wide tapeMighty Line Floor Marking Kits complies with OSHA regulation 1910. 303, keeping areas in front of electrical panels clear is important during times of emergency. Avoid OSHA penalties by applying the Mighty Line floor marking kits to your clean, dry floor. By ensuring access to electrical panels with a high visablility floor signs and tape, this product creates a safer environment. To apply, simply peel and stick the floor sign to the area in front of