The Authority may issue rules about charges that may be imposed by a water undertaker under a bulk supply agreement.
The rules may in particular make provision about—
If the Authority considers that a water undertaker is not acting as required by rules under this section, the Authority may give the undertaker a direction to do, or not to do, a particular thing specified in the direction.
It is the duty of a water undertaker to comply with a direction under subsection (3), and this duty is enforceable by the Authority under section 18.
The rules may—
The Authority may from time to time revise rules issued under this section and issue revised rules.
The Authority must issue revised rules if—
Revised rules may include provision for applying any of their revisions to bulk supply agreements made before the revised rules come into effect.