Tony
As you say these and other forums have regularly discussed enforcing X, Y and Z and I did ponder throwing in mandatory Drug and Alcohol testing into this thread a couple of postings ago.
I still think you are taking a somewhat dictatorial [or perhaps, Behavioral Safety] employer type approach.
You say that this person is refusing to wear hearing protection "as required".
But do you mean that the hearing protection is "required" by law [which it probably isn't] or "required" by the employer?
The OP comments:
sometimes the work area can be noisy (over 80dba), although not consistently and also he does not want to wear hearing protection even intermittently
This sort of statement says to me that the employer has probably NOT done an adequate assessment of the noise exposure of this individual and those around them!
It also tells me that the exposure might be above the "lower exposure action value" but that it is quite likely not to be at that level.
Only the most ardent BS Golden Rules practitioner would start with blanket requirements for medical surveillance and possibly PPE before doing the basics of doing what the primary duty holder should have done.
"He" might have all sorts of reasons NOT to want to wear hearing protection.
...and as every OSH practitioner is taught, PPE is the "last line of defence".
However, even the HSE seems to have suddenly forgotten the General Principles of Prevention aka Hierarchy of Control.
But, perhaps the issue of the moment is the use of RPE in any mechanical processing operation. Until recently HSE would have advocated avoidance and technical control measures as the starting point.
Now, it is insisting that RPE be used for ANY woodcutting activity whatever the type of wood and whatever the exposure can be expected to be with LEV and other controls in place.
At some point, HSE is going to lose in an Employment Tribunal when a duty holder appeals a Notice or in the Courts when the duty holder pleads not guilty and elects to go to trial.
For now HSE seems to be getting away with an ever more rigid approach, largely because it rarely targets duty holders other than the small businesses who can rarely afford to challenge the regulator, but also by maintaining reliance for HSE guidance on the judgment on what is reasonably practicable in Edwards v National Coal Board, rather than the less onerous interpretation in the later case of Marshall v Gotham, made in a higher Court [House of Lords].
How many users of these IOSH Forums have heard of Marshall v Gotham? - I guess not that many. If those using these Forums are unlikely to be aware of this key case, how many small businesses will be aware of its implications?