Provisional Job Offer means that they want you for the job, but aren’t confirming it until they’ve talked to you about your salary, contract etc. So the job is yours unless there’s a real sticking point that you can’t agree on, or an issue they haven’t come across yet (eg, references).
What Provisional job offer mean and what to expect
When you receive the message about a provisional Job offer it means that they have made you a job offer, provided that certain other matters are satisfactory to them.
You may expect different thing depending on what findings the company was able to make about you. For instance, one might be you have the job, provided that you complete your last year of college with satisfactory grades, and you receive a diploma on schedule.
In another instance for a provisional job offer condition is to know if you have a criminal record and have never been imprisoned. Another provision might be that they receive satisfactory letters of recommendation from your school or your previous employers.
Another might be that you satisfactorily pass a physical examination, and have no communicable diseases or precarious health situations or physical limitations that would prevent you from doing the work.
There are any number of possible provisions. Most of those should be evident from the papers you are asked to fill out.
An implied provision is that you actually return those papers, properly and accurately completed, within the scheduled time.
There are more that can be added to the meaning of provisional job offer from a company and the above ideas listed above is an eye opener for you to know what to expect when you are given a provisional Job offer.