Several states have enacted legislation to promote accessory dwelling units. In California, Government Code Sections 65852.150, 65852.2 & 65852.22 pertain to local regulation of ADUs. SB 1069 and AB 2299 are California bills approved in 2016 and effective January 1, 2017, that limit local government authority to prohibit ADUs in certain cases (and also reduce cost and bureaucracy hurdles to construction). The states of Vermont and New Hampshire have also adopted a number of bills that promote accessory dwelling units and reduce regulatory barriers to ADU construction. The State of Illinois considered, but did not adopt, HB4869 which would have required municipalities to permit (and reasonably regulate) accessory dwelling units (ADUs).