(d) Request for IRS determination letter. To qualify for the distribution deadline in
§ 4041.28(a)(1)(ii) (as modified and made applicable by
§ 4041.50(c)), the plan administrator must submit to the IRS a valid request for a determination of the plan's qualification status upon termination (“determination letter”) by the day on which the plan administrator completes the issuance of the notices of benefit distribution.