# The Fuel-testing Pilot Projects (Biobutanol Project) Regulations 2007, Regulation 4: Experimental period


The experimental period for biobutanol is 23rd November 2007 to 1st April 2009.

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Source: https://www.legislation.gov.uk/uksi/2007/3098/regulation/4 (the official version)
Page: https://openlegislation.uk/fuel-testing-pilot-projects-biobutanol-project-regulations-2007/regulation-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.