N.J. Admin. Code § 5:23-6.24A

Current through Register Vol. 56, No. 21, November 4, 2024

Section 5:23-6.24A - Supplemental requirements-Group M

(a) Automatic Sprinkler System: In buildings with a Group M fire area greater than 12,000 square feet or a Group M fire area more than three stories in height, when the work area exceeds 50 percent of the gross enclosed floor area of the building, an automatic fire sprinkler system shall be provided throughout the entire building. (Fire)

(b) Manual Alarm System: For buildings greater than three stories in height with occupant loads over 25, when the work area exceeds 50 percent of the gross enclosed floor area of the building, manual fire alarms shall be required throughout the building.

1. Exception: Manual alarm systems shall not be required in buildings equipped throughout with an automatic sprinkler system. (Fire)

(c) Vertical Opening Protection: When the work area exceeds 50 percent of the gross enclosed floor area of the building, vertical opening protection shall be provided throughout the building as follows:

1. A minimum two hour fire rated assembly with approved opening protectives shall be required for interior stairways and other vertical openings connecting more than six floor levels.

2. A minimum one hour fire rated assembly with approved opening protectives shall be required for interior stairways and other vertical openings connecting four to six floor levels.

3. A minimum 30-minute UFC fire barrier shall be required for interior stairways and other vertical openings not exceeding three stories.

i. Exception: No vertical opening protection shall be required for openings connecting only two floor levels, such as between the street floor and mezzanine or second floor, or for buildings with an automatic sprinkler system throughout. (Plan review--Building, Fire. Inspection--Building)

(d) Requirements for high-rise buildings: Any building or structure having one or more floors used for human occupancy located either more than six stories or more than 75 feet above the lowest level accessible to a fire department vehicle shall comply with the following:

1. When the work area is one entire floor or more or when the work area is 20 percent or more of the occupied floor area served by a recirculating air system, the recirculating air system which serves the work area shall be equipped with approved smoke and heat detection devices installed in accordance with the UCC. The devices shall stop the fan(s) automatically and shall be of the manual reset type. Automatic fan shutdown is not required when the system is part of an approved smoke removal or smoke control system. (Building)

2. When the work area is one entire floor or more or when the work area is 20 percent or more of the occupied floor area of the building, all elevators in the building shall be equipped with the following emergency control devices:

i. All automatic (nondesignated attendant) elevators having a travel distance of 25 feet or more above or below the designated level shall be equipped with Phase 1 Emergency Recall Operation as required by ASME A17.1-1987, Rules 211.3a and 211.3b listed in N.J.A.C. 5:70-3;

ii. At least one elevator shall be equipped with Phase II Emergency In-Car Operation, as required by ASME A17.1-1987, Rule 211.3c;

(1) In buildings with multiple elevators, at least one elevator to each floor served by an elevator shall be equipped with Phase II Emergency In-Car Operation; and

iii. All designated attendant elevators having a travel distance of 25 feet or more above or below the designated level shall be equipped with emergency controls, as required by ASME A17.1-1987, Rule 211.4. (Elevator)

3. When the work area is one entire floor or more or when the work area is 20 percent or more of the occupied floor area of the building, standpipes shall be provided up to and including the highest floor that is part of the work area. The standpipes shall be located and installed in accordance with the building subcode, except as follows:

i. No pump shall be required provided that the standpipes are capable of accepting delivery by fire department apparatus of a minimum of 250 gpm at 65 psi to the topmost floor in buildings equipped throughout with an automatic sprinkler system or a minimum of 500 gpm at 65 psi to the topmost floor in all other buildings. (Where the standpipe terminates below the topmost floor, the standpipe shall be designed to meet these requirements (gpm/psi) for possible future extension of the standpipe.)

ii. Hose and hose cabinets shall not be required. (Fire)

4. Automatic Sprinkler System: When the work area is an entire floor, an automatic sprinkler system shall be installed on that floor. When an automatic sprinkler system is provided, the sprinkler riser shall be sized to serve the entire building, even if the system currently being installed serves only a portion of the building. (Fire)

(e) Elevator Devices: When the work area exceeds 50 percent of the gross enclosed floor area of the building, all elevator devices serving any part of the work area shall comply with the requirements of 5:23-6.30(g). (Elevator)

N.J. Admin. Code § 5:23-6.24A

Amended by R.2000 d.492, effective 12/18/2000.
See: 32 N.J.R. 3219(a), 32 N.J.R. 4437(b).
In (d)2i, updated N.J.A.C. reference.
Amended by R.2004 d.145, effective 4/5/2004.
See: 35 N.J.R. 5190(a), 36 N.J.R. 1758(a).
Substituted references to automatic sprinkler for references to fire suppression throughout; rewrote (a); in (c)3, inserted "UFC" following "30-minute".
Administrative correction.
See: 36 N.J.R. 2490(b).
Amended by R.2009 d.117, effective 4/20/2009.
See: 41 N.J.R. 18(a), 41 N.J.R. 1726(a).
In (d)1, deleted "or exhaust" preceding the first and second occurrences of "system".