This is on the draft as soon as reasonably possible but cannot start filling slots until the laying date is known. Any business agreed in the meantime will inevitably have to be arranged at very short notice which, you will appreciate, will be highly inconvenient for anyone invited to give evidence during this waiting period. as soon as possible would Clarifying the laying date (or the week of the laying date) therefore help the Committee, and indeed other parliamentary committees who intend to consider the draft Plan.