Of course risky sexual behaviour would be banned by government health authorities. Going bareback would no longer be an option, even if customers paid more. Condoms would be mandatory and perhaps even rubber gloves as well.
Streetwalkers would be liable to additional rules including a special permit that would guarantee them exclusivity on a certain corner- for a price.
Limits on the height of spiked heels that they wear would be imposed as a health measure and they would not be allowed to walk the streets more than two hours without a scheduled break.
So as not to block traffic, drivers would be required to park their cars and get out of traffic while negotiating prices with streetwalkers. Hookers leaning into open car windows in the right-of-way would be subject to fines.
When approaching Johns for the first time, the first language of contact would have to be French. Hookers could switch to English after a specific request, but no John could demand to be serviced in English.
Then there would be the competency tests.
There is a certain level of skill required and the province would demand a 'Sex Worker' license, similar to a driver's license. Candidates would be required to take a course and then answer a multiple choice questionnaire at the licensing bureau.