The CSA White rectangle with orange Greek letter omega - Ω - indicates soles that provide resistance to electric shock. Such certified footwear contains a sole and heel design assembly that, at the point of manufacturing, has electrical insulating properties to withstand 18,000 Volts and a leakage current not exceeding 1mA for 60 seconds.
The CSA Yellow rectangle with a green “SD” and grounding symbol indicates soles are static-dissipative. The outer soles are made from an antistatic compound, capable of dissipating an electrostatic charge in a controlled manner. The test criteria are 106 to 108 Ohms. Note that SD footwear without toe protection will not have sole protection certified by CSA.
The CSA Blue Rectangle indicates Grade 1 protective toe without sole puncture protection. Grade 1 toe withstands impacts up to 125 joules.
The CSA Green triangle patch indicates sole puncture protection with Grade 1 Protective toe to withstand impacts up to 125 joules. Sole puncture protection is designed to withstand a force of not less than 1200 Newtons (270 pounds).
The Metatarsal Protection symbol indicates protection for the metatarsal region of the foot when working around heavy objects. Toe protection is required for all metatarsal protective footwear.
The Chainsaw Protection symbol indicates footwear that provides protection when using chainsaws and other cutting equipment.
Yellow rectangle indicates sole puncture protection with a Grade 2 protective toecap. (Super-static dissipative footwear). When tested in accordance to ASTMF2412, each test specimen shall fall within a range of 106 Ohms - 3.5 x 107 Ohms.