With all the wet weather this weekend, many district events are likely to be using groundsheets. BCB issued a new domestic regulation on groundsheets in 2015:
Use of Groundsheets
For outdoors play, portable groundsheets do not need to be fastened to the green, and may be temporarily removed upon completion of an end. The groundsheet may be placed at a different position at the start of each end, unless otherwise directed by the Controlling Body or greenkeeper, but always at least 2 metres from the rear ditch and at least 23 metres from the front ditch. The groundsheets must remain in use until the end of the game or until the Controlling Body decides that they are no longer needed.
For outdoors play, portable groundsheets do not need to be fastened to the green, and may be temporarily removed upon completion of an end. The groundsheet may be placed at a different position at the start of each end, unless otherwise directed by the Controlling Body or greenkeeper, but always at least 2 metres from the rear ditch and at least 23 metres from the front ditch. The groundsheets must remain in use until the end of the game or until the Controlling Body decides that they are no longer needed.