Some countries have passed laws mandating boardroom gender quotas. In addition, there are "middle ground" alternatives between prohibiting culs-de-sac and mandating them. He also issued regulations mandating wheelchair lifts on buses. In nations without laws mandating paid sick leave, some employers choose to offer it. All Southern states had Jim Crow laws mandating racial segregation of schools. He actually drafted an amendment to the Constitution mandating the district plan for selecting electors. The volume of criticism led many states to pass laws mandating managed-care standards. Water shortages in Venezuela resulted in the government mandating the rationing of water. Many governments are now mandating or recommending social distancing in regions affected by the outbreak. They reformed elementary schools by mandating uniformity, secularization, and rationality. TRIPS-plus conditions mandating standards beyond TRIPS have also been the subject of scrutiny. Canada is mandating adoption of the protocols no later than September 2020. Massachusetts might have been the first state to pass a law mandating sex-separation in 1887. He signed a bill mandating 20% ethanol in gasoline by 2013. Katter has championed the mandating of ethanol fuel content.