Precursor Control Regulations

55 With respect to a Class B precursor that is a preparation or mixture, a person who conducts an activity mentioned in section 57 is exempt from the requirements of these Regulations, except requirements applying to production for the purpose of sale or provision, if the preparation or mixture contains a precursor set out in Part 2 of Schedule VI to the Act and the contained precursor, either alone or with any other precursor of the same type, does not constitute more than 30% of the preparation or mixture by weight or volume, in the case of a solid or liquid, respectively.