New Hampshire Code of Administrative Rules
Lab - Commissioner, Department of Labor
Chapter Lab 1400 - SAFETY AND HEALTH OF EMPLOYEES
Part Lab 1403 - RULES FOR EMPLOYEE SAFETY AND HEALTH
Section Lab 1403.32 - Ladders
Universal Citation: NH Admin Rules Lab 1403.32
Current through Register No. 40, October 3, 2024
The employer shall ensure compliance with the following requirements:
(a) Fixed ladders shall comply with the following requirements:
(1)
Rungs shall have a minimum diameter of 3/4 inch, if metal, or 1-1/8 inches, if
wood;
(2) Rungs shall be a minimum
of 16 inches in length and be spaced uniformly no more than 12 inches
apart;
(3) Cages, wells, or safety
devices, such as fall prevention systems for ladders shall be provided on all
ladders more than 20 feet in length;
(4) Landing platforms shall be provided each
30 feet of travel, where cages are provided. Where no cage is provided, landing
platforms shall be provided for every 20 feet of travel;
(5) Tops of cages on fixed ladders shall
extend at least 42 inches above top of landing. The bottom of the cage shall be
not less than 7 feet or more than 8 feet above the base of the ladder;
and
(6) Side rails shall extend
3-1/2 feet above the landing.
(b) Portable ladders shall comply with the following requirements:
(1) Stepladders shall
be equipped with a metal spreader or locking device of sufficient size and
strength to securely hold the front and back sections in the open
position;
(2) Ladders shall be
inspected prior to use and those which have developed defects shall:
a.Be withdrawn from service for repair or
destruction; and
b.Be tagged or
marked as "Dangerous, Do Not Use";
(3) Ladders that are not self-supporting
shall be erected on a sound base at a 4/1 pitch and placed to prevent
slipping;
(4) The side rails of a
ladder used to gain access to a roof or platform shall extend at least 3 feet
above the landing;
(5) Portable
metal ladders shall not be used for electrical work or where they might contact
electrical conductors; and
(6)
Portable ladders shall be safely secured when not in use.
#4118 eff 8-22-86, EXPIRED: 8-22-92
New. #6684, eff 2-4-98, EXPIRED: 2-4-06
New. #8606, INTERIM, eff 4-12-06, EXPIRED: 10-09-06 (formerly Lab 1403.45)
New. #8796, eff 1-11-07
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