22. Provisions

Restructuring
£m
Restructuring
Environmental
£m
Environmental
£m
Total
£m
At 1 January 20126.29.36.522.0
Increase in provision4.51.25.7
Release of provision(1.7)(0.9)(2.6)
Utilisation of provision(4.4)(0.9)(0.6)(5.9)
Exchange difference(0.2)(0.4)(0.3)(0.9)
At 31 December 20124.47.16.818.3
Included in current liabilities8.9
Included in non-current liabilities9.4
18.3

The restructuring provision relates to the remaining costs associated with the closure of various Heat Treatment sites.

The Group provides for the costs of environmental remediation that have been identified, either as part of acquisition due diligence, or in other circumstances where remediation by the Group is required. This provision is reviewed annually and is separated into Restructuring Environmental and Environmental to separately identify environmental provisions relating to the restructuring programme from those arising in the ordinary course of business.

The increase in restructuring provisions is due to the ongoing implementation of the global restructuring initiatives. In addition £2.4m of reorganisation and redundancy costs have been recognised in relation to the establishment of an accounting Shared Service Centre in Prague.

The majority of cash outflows in respect of these liabilities are expected to occur within 5 years.