PART 12Prevention of Noise and Vibration (continued)
Sound Level Measurement
163 The levels of sound must be measured by using the slow exponential-time-averaging characteristic and the A-weighting characteristic of a sound level meter.
164 In a work place where the level of sound is 85 dB or more, the employer must post signs warning persons entering the work place
(a) that there is a hazardous level of sound in the work place;
(b) if applicable, of the maximum number of hours of exposure determined under subsection 161(2); and
(c) if applicable, of the requirement to wear a hearing protector.
PART 13Work Permit
165 The employer must assess the following types of work to determine if the work presents a hazard that is capable of causing death or serious injury:
(a) work on live electrical equipment that cannot be isolated or grounded;
(b) work on electrical equipment that is capable of becoming live during that work;
(c) hot work, as defined in section 189;
(d) work that requires exposure to hazardous substances beyond the limits referred to in subsection 255(1); and
(e) any other work that may present a hazard that is capable of causing death or serious injury.
166 The employer is required to issue a written work permit to a qualified person before the commencement of the following types of work:
(a) work that requires entry into confined spaces; and
(b) any other work that has been assessed under section 165 as presenting a hazard that is capable of causing death or serious injury.
167 The work permit must contain the following information:
(a) the name of the person who issues the permit;
(b) the name of the person to whom it is issued;
(c) the periods during which the permit is valid;
(d) the type of work to be performed and its location; and
(e) assessment of conditions related to the hazard of performing the work, and instructions arising from those conditions, including
(i) the work procedures to be followed,
(ii) the identification of equipment that is to be locked out in accordance with CSA Standard CAN/CSA-Z460-05, Control of Hazardous Energy - Lockout and Other Methods,
(iii) a description of any safety tests to be performed before the work is performed, during the performance of the work and following the completion of the work,
(iv) the specification of the particulars of the tags or signs to be used, if any,
(v) the specification of the protection equipment to be used, if any,
(vi) in the case of an emergency, the procedures to be followed,
(vii) a description of the specific space, work or electrical equipment to which the instructions apply, and
(viii) the identification of any other work permit that may affect the emergency or work procedures to be followed.
(2) The work permit must be made readily available for examination by employees for the period in which the work is being performed and after that period it must be kept by the employer for a period of two years after the day on which the work is completed, at the place of business nearest to the work place in which the work is completed.
(3) Work authorized under a work permit may be performed only after the equipment has been locked out in accordance with the standard referred to in subparagraph 167(e)(ii).
PART 14Confined Spaces
169 A person must not enter a confined space without having been issued a work permit under section 166.
170 Before authorizing a person to enter a confined space, the employer must ensure that all the requirements of this Part are met.
Assessment of Condition
(2) The assessment must, at a minimum, verify that the following requirements are respected:
(a) the concentration of any chemical agent to which the person is likely to be exposed in the confined space is not more than the value or level referred to in subsection 255(1) or the percentage referred to in subsection 255(5);
(b) the concentration of airborne hazardous substances, other than chemical agents, in the confined space is not hazardous to the health or safety of the person;
(c) the percentage of oxygen in the atmosphere in the confined space is not less than 19.5 per cent by volume and not more than 23 per cent by volume at normal atmospheric pressure and in any case the partial pressure of oxygen is not less than 148 mm Hg; and
(d) the value, level or percentage referred to in paragraphs (a) to (c) can be maintained during the period of proposed occupancy of the confined space by the person.
(3) The qualified person must, in a written report signed by that person, set out the following information:
(a) the name of the vessel on which the confined space is located;
(b) the location of the confined space on the vessel;
(c) a record of the results of the assessment made in accordance with subsection (2);
(d) the type, model, serial number and date of last calibration of any instrument used in the assessment process;
(e) an evaluation of the hazards of the confined space;
(f) if the employer has established procedures to be followed by a person entering into, exiting from or performing work in the confined space, which of those procedures are applicable;
(g) if the employer has not established procedures referred to in paragraph (f), the procedures to be followed by the person referred to in that paragraph;
(h) the protection equipment referred to in Part 10 that is to be used by every person granted access to the confined space; and
(i) if the employer has established emergency procedures to be followed in the event of an accident or other emergency in or near the confined space, which of the procedures are to be followed, including immediate evacuation of the confined space when
172 The written report referred to in subsection 171(3) must be kept by the employer on the vessel on which the confined space is located for a period of two years after the day on which the marine chemist or other qualified person signs the report.
Additional Requirements for the Issuance of a Work Permit
(a) obtain a written report referred to in subsection 171(3) from a qualified person;
(b) ensure that any liquid in which a person may drown or any free-flowing solid in which a person may become entrapped has been removed from the confined space;
(c) ensure that the entry of any liquid, free-flowing solid or hazardous substance into the confined space has been prevented by a secure means of disconnection or the fitting of blank flanges;
(d) ensure that all electrical equipment and mechanical equipment that presents a hazard to a person entering into, exiting from or performing work in the confined space has been disconnected from its power source and locked out in accordance with the standard referred to in subparagraph 167(e)(ii);
(e) ensure that the opening for entry into and exit from the confined space is sufficient in size to allow safe passage of a person who is using protection equipment; and
(f) establish an entry control system.
(2) The written report referred to in subsection 171(3) and any procedures identified in that report must be explained to a person who is about to enter into the confined space and that person must sign a dated copy of the report indicating that they have read the report and that the report and the procedures were explained to them.
(3) If conditions in the confined space or the nature of the work to be performed in the confined space are such that any of paragraphs 171(2)(a) to (c) or (1)(b) to (e) cannot be complied with, the employer must comply with the requirements of sections 123 and 124 and must at a minimum ensure that
(a) a qualified person is
(b) each person granted access to the confined space must wear a safety harness that is securely attached to a lifeline that is attached to a secure anchor outside the confined space and is controlled by the qualified person;
(c) two or more employees, which may include the qualified person, are in the immediate vicinity of the confined space to assist in the event of an accident or other emergency; and
(d) one of the employees referred to in paragraph (c) is
(i) trained in the emergency procedures referred to in paragraph 172(3)(i),
(ii) the holder of a first aid certificate, and
(iii) provided with the protection equipment referred to in paragraph 172(3)(h) and any emergency equipment required by the procedures established by the employer under paragraph 172(3)(i).
(4) Before a confined space is sealed, the person in charge of the area surrounding the confined space must ascertain that no person is inside the confined space.
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