<p>As set out in the Cabinet Office Guide to Handling Correspondence (<a href="https://www.gov.uk/government/publications/handling-government-correspondence-guidance" target="_blank">https://www.gov.uk/government/publications/handling-government-correspondence-guidance</a>) all correspondence to Ministers from MPs should be signed off at an appropriate ministerial level. Official replies to letters from MPs should only occur where the correspondent has written about the day-to-day operations of an executive agency or a non-departmental public body, in which case the relevant Chief Executive may be asked to reply, or where a Minister determines that the particular circumstances mean an official reply would be more appropriate.</p>