Accredited Mass Management Scheme (AMMS) - Prime Mover, Trailer Combinations Operating Conditions (PDF).
AMMS - Period Permit Fee Schedule (PDF).
To be eligible for AMMS, operators must be accredited under the WA Heavy Vehicle Accreditation (WAHVA) Mass Management Module. Instead, AMMS allows for any product and any proven loading control method to be used.
Does not prescribe specific loading methods nor restrict commodity types.
Allows for approved tandem drive and tri drive combinations to operate at three (3) concessional mass levels and.