20 Years of PHH. John Holland, President of PHH Environmental Ltd. remembers the past 20 Years of PHH's great history. To read his full article and see a few pictures of the past click here. PHH becomes COR Certified in Alberta PHH joins the CAT Alliance as of April 2003, to provide Environmental Due Dilligence, Hazardous Materials Management and other services to international corporations in Canada and overseas. CAT Alliance Ltd is among Europe's largest providers of environmental due diligence services, assessing the environmental risks related to the transfer of sites and plants worldwide. The CAT Alliance Ltd. offers due diligence services to investors, purchasers and divestors. It is owned by three leading European environmental consultants: COWI (DK), Enviros (UK) and Tauw (NL). These benefits stem from a uniform, high standard of service offered throughout the Alliance, optimal use of resources, knowledge-sharing and standard quality procedures for effective project delivery. CAT Alliance Ltd. offers local support from a combined network covering more than 50 countries. (paste link to CAT Alliance website) PHH has developed an electronic data collection system for recording hazardous building materials in buildings. The Haztracker system is 100% electronic which reduces the problems of conventional data collection and increases efficiency.