Contractors will be required to have a temporary key that is used during construction (Construction Keying) to change the temporary key is key fact, before delivery of the final task.
Contractors must have a key for temporary use during construction. (Construction Keying) by temporarily changing the key is really the key. To be completed before delivery of the final installment.
The contractor must have the key temporarily used during construction (Construction Keying) by to change the temporary key is the key. To correct before delivery the last installment.