Strict government rules have repeatedly tripped up local and foreign internet companies in China. Yet in the fast-moving Chinese tech industry, an “invest first, get approval later” model has prevailed. For Uber and Didi, it appears that ethos has paid off. Analysts said the new law, which will take effect on Nov. 1, signaled a step back from earlier, stricter proposals. According to the rules, drivers must have three years’ experience, be licensed by a local taxi regulator and have no criminal record. Cars with more than 600,000 kilometers, or about 370,000 miles, on the odometer may not be used.