http://www.mmafighting.com/2016/2/2/...luding-bans-on
The CSAC just passed a lot of "emergency" weight-cutting rules for fights in California. They pretty much did everything they could to ban dehydration for weight-cutting. The new rules go into effect on March 1st.
IV rehydrating is banned, so that will impact all promotions for the state, not just the UFC. (If its medically necessary, they might give a waiver, but the IV can't be for rehydrating, and if you need an IV for another medical reason you probably wont be allowed to fight)
Also, the CSAC will test urine for signs of dehydration (unclear if this is just the day of weigh-ins), if you fail the test you get 2-3 hours to try to rehydrate. If you fail the test again or the doctor sees signs of dehydration, the bout will be called off. The CSAC is also giving promotions and fighters the ability to move weigh-ins back up to 30 hours before the event. In the future, they will look into possibly moving weigh ins to 72 hours before the event.