sidewalk work, storm drainage, traffic control, street construction and expansion, street lighting, water supply, landscaping, park improvements, environmental remediation, bridge construction and repair, and parking structures. State enabling legislation gives local governments the authority to designate tax increment financing districts. The district usually lasts 20 years, or enough time to pay back the bonds issued to fund the improvements. While arrangements vary, it is common to have a city government assuming the administrative role, making decisions about how and where the tool is applied. Most jurisdictions only allow bonds to be floated based upon a portion (usually capped at 50%) of the assumed increase in tax revenues. For example, if a $5,000,000 annual tax increment is expected in a development, which would cover the financing costs of a $50,000,000 bond, only a $25,000,000 bond would be typically allowed. If the project is moderately successful, this would mean that a good portion of the expected annual tax revenues (in this case over $2,000,000) would be dedicated to other public purposes other than paying off the bond. Community revitalization levy (CRL) in Canada By 2015 major Canadian cities had already implemented community revitalization levies (CRL) — the term used for TIFs in Canada. Alberta In April 2012, it was proposed that the Alberta government change regulations so that the Community Revitalization Levy (CRL) could be applied to remediation costs "incurred by a private developer." The Calgary Municipal Land Corporation (CMLC) — an arms-length a subsidiary of the City of Calgary, established in 2007, to revisit land use in the longtime deserted chunk of land in the east downtown core along the Bow River — used a CRL to develop Downtown East Village, Calgary making Calgary the first Canadian city to use the CRL. The CMLC "committed approximately $CDN 357 million to East Village infrastructure and development" and claims that it "has attracted $CDN 2.4 billion of planned development that is expected to return $CDN 725 million of revenue to the CRL." The designated levy zone for the Rivers District CRL is wider than the East Village, making it financially sound since it collects taxes for twenty years on its anchor building, the 58-storey Bow tower, and from developments in nearby Victoria Park (Calgary). In an interview with the Calgary Sun in February 2015, Michael Brown, CRL president and CEO said they were looking into a CRL for the development of the West