Power to make rules,etc., includes power to add,amend, vary or rescued rules etc.

Where, by any enactment, a power to issue rules, notifications, orders, schemes, forms or bye-laws is conferred, then, unless a different intention appears that power includes a power to add to, amend, vary or rescind any rules, notifications, orders, schemes, forms or bye-laws so issued in the same manner and subject to the same sanction and conditions(if any) as the power to issue the rules, notifications, orders, schemes, forms or bye-laws.