Every entrance door to an individual housing unit shall have a dead bolt or deadlatch
with at least a 1/2-inch throw which penetrates the striker not less than 1/4 inch.
The lock shall be so constructed that the dead bolt or deadlatch may be opened from
inside without use of a key. In hotels and other multi-unit buildings that provide
housing for rent on a daily or weekly basis, every entrance door to individual units
shall have a chain door guard or barrel bolt on the inside.
6.
Every entrance door to an individual housing unit, other than transparent doors, shall
have a visitor-observation port, which port shall not impair the fire-resistance of
the door. Observation ports shall be installed at a height of not less than 54 inches
and not more than 66 inches above the floor.
7.
In all leased or rented housing units in buildings other than hotels and other multi-unit
buildings having transient occupancies, lock mechanisms and keys shall be changed
at owner's expense upon a change of tenancy, except that such change of locks and
keys will not be required where an approved proprietary key system is used.
8.
All building entrance doors shall be openable from the interior without use of keys.
9.
Doors to storage, maintenance, and building service rooms shall be self-closing and
self-locking.
10.
Dead bolts or other approved locking devices shall be provided on all sliding patio
doors and installed so that the mounting screws for the lock cases are inaccessible
from the outside.
11.