Introduced by the Finance Act 2004, one of the forms of transitional protection available for a member of a registered pension scheme ( www.practicallaw.com/5-201-6474) who had accrued pension rights before 6 April 2006. A member had to register with HM Revenue & Customs ( www.practicallaw.com/6-200-6399) for enhanced protection before 6 April 2009. The protection was available whether or not the value of the member's pension savings exceeded the standard lifetime allowance ( www.practicallaw.com/8-201-6477) at 6 April 2006. The effect of enhanced protection is to disapply the lifetime allowance for pension savings accrued before 6 April 2006. But a member with enhanced protection who makes any further pension contributions or accrues any further pension benefits beyond specified minimum levels after 6 April 2006 automatically loses his claim to enhanced protection. See also primary protection ( www.practicallaw.com/4-204-0648) , fixed protection ( www.practicallaw.com/6-507-1857) and fixed protection 2014 ( www.practicallaw.com/3-537-0805) .