[aussiblue]

See http://www.slp.wa.gov.au/legislation..._homepage.html OHS Regs 1996.

Probably not as black and white as you might like but I think 3.33 covers it adequately - i.e. a risk assessment would suggest that a protective helmet would reduce the risk of death or injury from an object falling from the crane.

Division 2 — General duties in relation to personal protective clothing and equipment
3.32. Risks to be reduced in first instance by means other than protective clothing and equipment
When a person is considering, for the purposes of regulation 3.1(c), the means by which a risk may be reduced, the person is to —
(a) firstly consider the means other than the use of protective clothing and equipment by which the risk might be reduced; and
(b) then consider the use of protective clothing and equipment to the extent that it is not practicable to reduce the risk by means other than the use of protective clothing and equipment.
3.33. Personal protective clothing and equipment, standards applicable to
(1) If a person —
(a) is required under any of these regulations to identify a hazard at a workplace and to assess the risk of injury or harm to a person resulting from the hazard; and
(b) concludes from the assessment process that a risk might be reduced by any of the personal protective clothing or equipment set out in column 1 of the Table to this regulation,
then the person must ensure that the personal protective clothing or equipment is in accordance, and complies, with the relevant requirements of each Standard set out opposite the clothing or equipment in column 2 of the Table.
Table
Column 1 Column 2
Means of protection Standard
Safety helmet AS/NZS 1801
Eye protection AS/NZS 1337 and
AS/NZS 1338
Gloves AS/NZS 2161
Footwear AS/NZS 2210
Skin protection by way of sunscreen
AS/NZS 2604
Clothing for protection against heat and flame AS/NZS ISO 2801 and AS/NZS 4501.1
Clothing to protect skin against toxic or volatile chemicals
AS 3765
Penalty: the regulation 1.16 penalty.
(2) A person does not commit an offence under subregulation (1) if, proof of which is on the person, the protection provided by the person in relation to a particular risk is of an equivalent or higher standard than the means of protection referred to in subregulation (1).
(3) Nothing in subregulation (1) affects any requirement in the Act or in these regulations to provide such protection as will protect a person from a risk if the means of protection referred to in subregulation (1) would not provide adequate protection in relation to that risk.
[Regulation 3.33 amended in Gazette 10 Jan 2003 p. 63; 14 Dec 2004 p. 6018; 2 Nov 2010 p. 5499.]
3.34. Person concluding personal protective clothing or equipment should be used, duties of
(1) If a person is required under any of these regulations to identify a hazard at a workplace and to assess the risk of injury or harm to a person resulting from the hazard and the person concludes from the assessment process that personal protective clothing or equipment should be used at the workplace then the person must ensure that —
(a) the person who uses the clothing or equipment is instructed in relation to the correct fitting, use, selection, testing, maintenance and storage of the clothing or equipment; and
(b) the person who uses the clothing or equipment is informed of the limitations in the use of the clothing or equipment; and
(c) the clothing or equipment is maintained in good working order; and
(d) the clothing or equipment is replaced —
(i) when it no longer provides the level of protection required to protect the wearer or user against the particular hazard; or
(ii) when the safe working life, as specified by the person who manufactured the clothing or equipment, has expired; or
(iii) subject to subregulation (2), when it is damaged and cannot be repaired;
and
(e) the area of a workplace at which the clothing or equipment is required to be used by a person other than the person who provides the clothing or equipment is identified by signs in accordance, and complying, with AS 1319.
Penalty: the regulation 1.16 penalty.
(2) A person does not commit an offence under subregulation (1)(d) if, proof of which is on the person, the clothing or equipment is repaired rather than replaced and —
(a) the repair is done by a competent person; and
(b) the repair is done according to the specifications of the manufacturer of the equipment; and
(c) any replacement part used in the repair is that which is specified by the manufacturer of the equipment as the correct replacement part.
[Regulation 3.34 amended in Gazette 14 Dec 2004 p. 6018.]
3.35. Person issued personal protective clothing or equipment, duties of
A person to whom personal protective clothing or equipment is provided or made available for use at a workplace —
(a) must use the protective clothing or equipment in a manner in which he or she has been properly instructed to use it; and
(b) must not misuse or damage the clothing or equipment; and
(c) must, as soon as practicable after becoming aware of any —
(i) damage to; or
(ii) malfunction of; or
(iii) need to clean or sterilize,
the clothing or equipment, notify the person providing the clothing or equipment of the damage, malfunction or need to clean or sterilize the clothing or equipment.
Penalty: the regulation 1.15 penalty.
[Regulation 3.35 amended in Gazette 14 Dec 2004 p. 6016 17.]
3.36. Safety helmets at construction site, main contractor’s duties as to
If there is a risk of a person being struck on the head by a falling object at a construction site then the main contractor must ensure that —
(a) at all times when the person is at risk, the person wears a safety helmet complying with the relevant requirements of AS/NZS 1801; and
(b) there is displayed at each entrance to the site a safety sign bearing the words “SAFETY HELMET AREA — HELMETS MUST BE WORN AT THIS SITE” and that otherwise complies with AS 1319.
Penalty: the regulation 1.16 penalty.
[Regulation 3.36 amended in Gazette 10 Jan 2003 p. 64; 14 Dec 2004 p. 6018.]

You may also find this interesting: http://www.commerce.wa.gov.au/WorkSa..._handling.html