16 Interruption: ONI sites

(b) where the Supply Meter Point ceases to be eligible in accordance with paragraph 13.1 in respect of any Gas Year, the Supply Meter Point shall unless the Operator otherwise determines be re-designated as Firm with effect from the first Eligible Status Change Date in that Gas Year.

15.2 Where pursuant to any provision of this paragraph 15 it is proposed that a Supply Meter Point is to be re-designated or designated as Firm with effect from an Eligible Status Change Date, and the Operator determines and notifies the User that the Firm Distribution Requirement is not satisfied the designation or re-designation as Firm will not be effective (subject to paragraph 15.5) and the Supply Meter Point will continue to be an Interruptible Supply Meter Point.

15.3 In the case of a re-designation as Firm pursuant to paragraph 15.1(a), any notification by the Operator under paragraph 15.2 will be given not later than one month after the relevant Change Request Deadline.

15.4 For the purpose of the Code the "Firm Distribution Requirement" in respect of an Interruptible Supply Meter Point is the requirement that (after taking into account the Operator’s ability to Interrupt at other Interruptible Supply Meter Points) it would be feasible to make gas available for off take at the Supply Meter Point (if the Supply Meter Point were Firm) at a rate not less than the Supply Meter Point Off take Rate and in quantities (in a 24 hr period) in the amount of the Supply Meter Point Capacity which a User would hold upon its re-designation as Firm.

15.5 Where at any time:

(a) a Supply Meter Point is Interruptible; and

(b) the Registered User demonstrates to the reasonable satisfaction of the Operator that, by reason of a substantial change, which has occurred since and was not reasonably foreseeable at the most recent Change Request Deadline, in the physical nature of the consumer’s requirements for the supply of gas, the Consumer requires the Supply Point to be Firm,

the User may (subject to paragraph 15.2) propose that the Supply Point is re-designated as Firm with effect from any later Day.

15.6 Where in any Gas Year a Supply Meter Point is re-designated as Firm pursuant to paragraph 15.5, until the first Eligible Status Change Date which is more than 12 months after the date of such re-designation, the Supply Meter Point may not be re-designated as an Interruptible Supply Meter Point (irrespective of the Registered User).

16 Interruption: ONI sites

16.1 Where the Operator determines that the relevant number of Days (in accordance with paragraph 16.2) would exceed the Interruption Allowance in any Gas Year, the Operator may with effect from 1st October (or any other Day agreed with the Registered User) designate an Interruptible Supply Meter Point as being an "ONI Supply Meter Point" by giving notice of not less than 12 months (or such lesser period as the Registered User may agree) to the Registered User.

16.2 For the purposes of paragraph 16.1 the relevant number of Days is the number of Days on

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