How many days must the elevator maintenance contract be advanced?

The new elevator depends on the regular inspection time after the expiration of your elevator free maintenance period. As long as you can show the elevator maintenance contract for inspection on the day of the annual inspection by the special inspection institute, of course, the validity period of the contract must be connected with the free maintenance date, not less than one day. Of course, some local special inspection offices also require that there must be a free maintenance contract signed by the manufacturer and the user during the free maintenance period. The validity period of your newly signed maintenance contract must also be related to the date of the free maintenance contract. Similarly, you can't be absent for a day, otherwise you may be handed over to administrative law enforcement if you are suspected of breaking the law. As long as the time of the previous contract and the later contract can be connected, the old elevator can be inspected on the day of annual inspection. There is also a premise for the above two points, that is, it is illegal to apply in advance within the validity period for the regular inspection of elevators, otherwise it will exceed the scheduled inspection date (the next inspection date on the elevator use certificate), even if it is one day!