++++ 1. Officials ° Actions ° Prior complaint through official channels ° Time-limits ° Matter of public policy ° Expiry ° Re-opening ° Conditions ° New fact ° Request under Article 90(1) of the Staff Regulations ° No effect (Staff Regulations, Arts 90 and 91) 2. Officials ° Actions ° Prior complaint through official channels ° Implied decision rejecting a request not challenged within the time-limit ° Subsequent express decision ° Confirmatory measure ° Expiry (Staff Regulations, Arts 90 and 91)