Snowboard and ski helmets are tested to ensure their safety and level of protection. There are 3 main bodies that test helmets for safety: the American Society for Testing Materials, International (ASTM), the European Committee for Standardization (CE EN) and the CPSC (Consumer Product Safety Commission).
EN 1077 A/B (CE 1077)
This is the European standard for non-motorized snow sports such as recreational skiing and snowboarding and includes provisions for a field of vision, shock absorbing properties, retention system, and chin strap & fastening devices. Helmets are tested for blunt impact protection, sharp and pointed object penetration, chin strap resistance, an area of coverage, a field of vision and a clearance between the head and shell.
This standard is seen on almost all certified recreational ski or snowboard helmets found in the UK. EN 1077 comes in Class A or Class B. Class A helmets must protect the top, rear, ears and side of the head and must withstand an impact from a drop height of 75cm. Class B must protect the top and rear of the head and must withstand an impact from a drop height of 37.5cm. Construction types for these helmets are almost always EPS or In-Mold technology with ABS or PVC plastic shells.