For instance, across seven districts, the percentage of mitigation banks inspected ranged from 13-78% (Table 4.6) (Government Accountability Office, 2005). Likewise, under the Policy for the Management of Fish Habitat, a recent audit by the Office of the Auditor General of Canada found that the required self-monitoring was completed in only 38% of cases involving ministerial authorisations and in just 3% of cases involving letters of advice (OAGC, 2009). A central and transparent information database can assist regulators and the public to locate offsets, assess their performance over time and contribute to the evaluation of a scheme. In Switzerland, for example, a transparent offset registry is under construction to assist in MRV as the audit of offset projects is largely undertaken by NGOs (Morandeau and Vilaysack, 2012). The table represents banks approved from November 1995 to December 2003. Calculated as a percentage of the mitigation banking agreements requiring monitoring reports.