OKLAHOMA CITY (AP) _ A bill signed into law by Gov. Brad Henry bill increase the number of people eligible to serve as substitute teachers in rural school districts. The legislation removes a regulation that has kept relatives of school board members from working as substitute teachers or in temporary jobs such as bus drivers. Rural lawmakers who sponsored the legislation say the ban has created a hardship for schools in some small towns. The law keeps in place the nepotism restriction for large school districts, those with an average daily membership of 5,000 or more. It passed the House and Senate without opposition before lawmakers adjourned last month, and Henry signed the bill last week.