specify circumstances in which a penalty may not be imposed;

specify steps that the Registrar must take before imposing a penalty;

set a minimum for the period which must be specified under section 15(2)(d) or 16(2)(d);

require other matters to be specified in a notice under either of those sections;

specify a maximum period that may elapse between the service of a notice under section 15 and the service of a penalty notice under section 16;

provide for the reviewing of a decision to impose a penalty;

make provision about the variation or cancellation under section 16(7) of penalty notices;

impose duties on the Registrar about the keeping of accounts and other records in relation to penalties;

allow for the charging of interest, or an additional penalty, if a penalty is paid late.