Please explain the Certification rating...
Please explain the Certification rating system What do the ASTM 2040 CE EN 1077 mean? What does class B mean?
I know if relates to safety, does one mean it is safer than another?
ASTM is the American Society for Testing and Materials, and 2040 means it's designated for non-motorized snow sports.
CEN 1077 is another safety rating, from a different organization. Class B and A just differentiate levels of coverage. Class A is considered slightly safer in terms of coverage, but in terms of impact strength and penetration, most snow helmets are the same.