HC Deb 18 March 1940 vol 358 c1654W
Captain Markham

asked the Secretary of State for War for what reasons pay attached to acting rank is withheld for three months from officers who have been called up from the Emergency Reserve?

Sir V. Warrender

It is not the case that pay of acting rank is withheld for three months, but only for 21 days. If the officer continues to hold the acting rank after that period, the higher rate of pay is issued with retrospective effect.