Why California has a state law that limits the workload of part-time instructors to less than full time is a good — but unanswered — question. The limit has been used to justify paying part-timers at a much lower rate than the full-timers and keeps them from qualifying for benefits such as health insurance and even tenure. It is part of a series of laws that have created a two-tiered system of haves and have-nots among college professors. If the original purpose of the caps was to protect full-time jobs and to ensure that the colleges would not hire lots of part-timers and pay them poverty-level wages, the law has backfired spectacularly
https://edsource.org/2022/part-time-professors-deserve-the-opportunity-for-full-time-work/665115
