If I stopped health insurance for 3 months will my new coverage still have to cover my pre-existing condition?

I lived in California, and I am going to have my health insurance cancelled because I cannot afford anymore. But what if I find another job and get insurance within 6 months from cancelling my insurance, will my pre-existing conditions be covered or excluded and need a waiting period before they are covered?
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There will be a waiting period, if you have a lapse in coverage more than 63 days.
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