16.10. The amount that an operator may deduct, as a pre-production development allowance in respect of expenses incurred after 30 March 2010, under subparagraph e.2 of paragraph 2 of section 8, as it read on 30 March 2010, in computing its annual profit for its fiscal year that ends after 30 March 2010 and includes that date, or under subparagraph f of subparagraph 2 of the second paragraph of section 8 in computing its annual profit for a fiscal year that begins after 30 March 2010, must not exceed its cumulative pre-production development expenses at the end of the fiscal year.