The regulatory impact assessment prepared during the implementation of the Regulations estimated the aggregated annual cost to enterprises with 50 to 150 employees of adopting or changing information and consultation procedures to comply with the Regulations to be between £3.18 million and £6.6 million in 2008; £2.78 million and £6.2 million in 2009, 2010 and 2011; and £2.78 million and £4.7 million in 2012.