Government of Canada / Gouvernement du Canada
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Maritime Occupational Health and Safety Regulations (SOR/2010-120)

Regulations are current to 2021-09-11 and last amended on 2021-07-01. Previous Versions

PART 11Lighting (continued)

Measurements of Average Levels of Lighting

  •  (1) For the purposes of this Part, the average level of lighting in an area must be determined by taking four or more measurements at different places in the area at the levels set out below and by dividing the total of the results of the measurements by the number of measurements:

    • (a) if work is performed at a level higher than the deck, at the level at which the work is performed; and

    • (b) in any other case, 1 m above the deck.

  • (2) If the average level of lighting is measured in a dry provision storage room, it must be measured when the room is empty.

  • (3) The lighting level measurements must be carried out by a qualified person.

Emergency Lighting System

Levels of Lighting

  •  (1) The level of lighting at any place in an area must not be less than one third of the average level of lighting prescribed by this Part for the area.

  • (2) The average level of lighting in a work area set out in column 1 of the table to this subsection must not be less than the level set out in column 2.


    Average Levels of Lighting on Vessels

    Column 1Column 2
    ItemWork AreaAverage Level in lx
    (a) General200
    (b) At the surface of desks500
    2Dry Provision Storage Area100
    (a) General300
    (b) At the bench in an area in which medium or fine bench work or machine work is performed500
    4Service Space — at the head of every stairway, ladder and hatchway200
    (a) General300
    (b) At working position1000
    6Crew Accommodation200
    7Sanitary Facilities
    (a) General100
    (b) At mirror200
    8Dining Area and Recreational Facilities
    (a) General100
    (b) At the surface of tables and desks200
    9Boiler Rooms200
    10Engine Rooms
    (a) General200
    (b) At control stations, switchboards and control boards300
    11Generator Rooms200

Working, Walking and Climbing Areas

 Unless otherwise specified, all working, walking and climbing areas must be illuminated to

  • (a) an average level of 50 lx; and

  • (b) a minimum level of 30 lx at any place in those areas.

Visual Display Terminals

  •  (1) The average level of lighting at a task position set out in column 1 of the table to this subsection must not be more than the average level set out in column 2.


    Average Levels of Lighting — VDT Work

    Column 1Column 2
    ItemTask PositionAverage Level in lx
    1VDT Work
    • (a) Task positions at which data entry and retrieval work are performed intermittently

    • (b) Task positions at which data entry work is performed exclusively

  • (2) Reflection glare on a VDT screen must be reduced to the point where an employee at a task position is able to read every portion of any text displayed on the screen and see every portion of the visual display on the screen.

  • (3) If VDT work requires the reading of a document, supplementary lighting must be provided where necessary to give a level of lighting of at least 500 lx on the document.

PART 12Prevention of Noise and Vibration


 The following provisions do not apply in respect of vessels constructed before the day on which the MLC 2006 comes into force in Canada:

  • (a) section 160; and

  • (b) subsection 161(5).


 The following definitions apply in this Part.

A-weighted sound pressure level

A-weighted sound pressure level means a sound pressure level as determined by a measurement system which includes an A-weighting filter that meets the requirements set out in the International Electrotechnical Commission International Standard IEC 61672-1:2002(E), 1st edition 2002-2005 Electroacoustics – Sound Level Meters. (niveau de pression acoustique pondérée A)


dBA means decibel A-weighted and is a unit of A-weighted sound pressure level. (dBA)

noise exposure level (Lex,8)

noise exposure level (Lex,8) means 10 times the logarithm to the base 10 of the time integral over any 24-hour period of a squared A-weighted sound pressure divided by 8, the reference sound pressure being 20 µPa. (niveau d’exposition (Lex,8))

sound level meter

sound level meter means an instrument for measuring levels of sound and impulse sound that meets the standards set out in CSA Standard CAN/CSA-Z107.56-06, Procedures for the Measurement of Occupational Noise Exposure. (sonomètre)

sound pressure level

sound pressure level means 20 times the logarithm to the base 10 of the ratio of the root mean square pressure of a sound to the reference sound pressure of 20 µPa, expressed in decibels. (niveau de pression acoustique)

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