The regulations, which cover safety in construction design, will now be introduced six months late, in spring 2007, to give officials time to finalise changes.
The Health and Safety Executive has delayed implementation of the revised CDM Regulations by up to six months.
The regulations, which cover safety in construction design, will now be introduced in spring 2007 instead of the planned date of October this year. The HSE said the delay would give officials greater time to finalise the regulations and prepare the industry for the changes.
HSE chief inspector of construction Stephen Williams said: "When we began our review of the regulations, the Health and Safety Council set us some important and challenging objectives. The HSE and its partners believe we are well on the way to producing a set of replacement regulations which will achieve those objectives, but we would be selling ourselves short if we rushed the proposals through."
The decision follows a three-month industry consultation on proposed changes to the regulations.