[55] It is clear from Dr Parker's subsequent correspondence with the appellant,[70] from his evidence[71] and from Section 3 of the approved form completed by the EMO, Dr Huda,[72] that, at the time Dr Parker completed Section 4, the appellant had no restrictions, in the ordinary sense of that word, on his fitness to undertake his current position. It is true, as Dr Parker appreciated, that the Act and the Regulation are sensibly intended to prevent potential injury to those at coal mines by ensuring that risks and hazards are kept to acceptable levels. It is arguable that there is some tension between s 48(1) Regulation[73] and the terms of the form with which s 46(3) Regulation requires compliance. But I consider these provisions can be construed harmoniously. The fact that the appellant had a BMI (calculated from his weight and height) and a neck circumference of 52 cm, matters which statistically placed him at greater risk of a future cardiac event than those who are not obese and have a smaller neck circumference, was not a present restriction on his capacity to work as an operator. As the primary judge noted, at the time of Dr Parker's Health Assessment, the appellant was not subject to any physical restrictions which made him unfit to undertake his current position.[74] The form did not require Dr Parker as NMA to address whether the appellant may be at risk of developing a restriction making him unfit to undertake his current work in the future. It required him to identify present restrictions which, in terms of s 48(1) Regulation, showed he "is unable to carry out [his] tasks at the mine without creating an unacceptable level of risk". If the form intended an NMA to predict whether the worker was at risk of developing future restrictions, it could be expected to have said so in terms and to have also addressed other future risk factors not amounting to present restrictions, such as family history of sleep apnoea, cardiac disease, cancer, diabetes and so forth. As Dr Parker fairly conceded in his evidence, despite the appellant's obesity and neck circumference, he may never develop cardiac disease, cancer, diabetes and so forth and may never have a sudden cardiac event.[75] It seems more likely that the information in the form as to height and weight (from which the BMI is calculated) and neck circumference is either to allow the EMO and the NMA to warn the worker of the general health dangers of obesity and the general health benefits of losing weight, or to identify where the worker's height or weight is a restriction which makes them physically unable to undertake their proposed or current position without creating an unacceptable level of risk. Examples of the latter scenario would be a short person whose legs or arms could not reach pedals or levers necessary to operate machinery or a large person who was too big to physically work in a confined work space.