If the Secretary of State so requires by regulations, a precepting authority shall supply prescribed information within a prescribed period to any billing authority to which it has power to issue a precept.

A billing authority which has set amounts in accordance with section 30 above (originally or by way of substitute) shall, before the end of the period of 21 days beginning with the day of doing so, publish a notice of the amounts in at least one newspaper circulating in the authority’s area.

Failure to comply with subsection (2) above does not make the setting of amounts invalid.