The ASTM D3475-20 standard provides a classification scheme for child-proof Encasement, defines the actions, skills, or tools required for Encasement, and provides examples of current Encasement. This classification scheme is intended to help identify and understand the different types of child-proof Encasement. Examples in the standard are for informational purposes only and do not imply endorsement or certification of Encasement by ASTM. The function of Encasement should be assessed in accordance with the Child Protection Encasement Act 1970 and its newer versions. The standard also specifies how additions or deletions of examples should be reported, and requires that no ASTM logo or certification mark be used when using Encasement. This standard has been developed in accordance with internationally recognized principles of standardization.