A staff member (other than a TA) who is temporarily (i.e. for a period not exceeding one year) assigned to a higher level post, or is temporarily required to perform higher level functions while remaining on his/her current post may be granted a non-pensionable Special Post Allowance (SPA) after completion of 3 months of continuous service at the higher level functions, subject to confirmation in writing by the supervisor that the staff member is indeed performing at the higher level. The reason for the three-month grace period is that, from time to time and as part of their normal duties, staff may be expected to temporarily assume higher level functions (during periods of absence, for instance). However, (i) when a staff member is temporarily assigned to a post more than one level above their personal grade or to a different category or (ii) when the temporary assignment is in a D or E hardship category, SPA may be granted by the supervisor with immediate effect and will not have to wait three months provided that the supervisor confirms that the staff member is performing all the responsibilities attached to the higher position.