Can I only take the college entrance examination in my local hukou? Can it cross counties and cities?

It should be possible to cross counties and cities, but you must study in this school from the first year of high school, but you can't cross provinces. My mother is the headmaster of this school. In the past two years, the inter-provincial college entrance examination has been particularly strict, but there are policies and countermeasures, especially in private schools. Last year, the parents of a school in our city collectively protested publicly, because many students from other provinces suddenly entered the college entrance examination. It poses a great threat to some students who are on the edge of the key and undergraduate lines. This is a big noise, and different local policies will have some subtle differences. Some students can take cross-county exams, but they have to temporarily move their registered permanent residence to the name of the school. So you'd better listen to the local school. After all, this is a big deal and we can't make mistakes.