Working with and managing asbestos containing materials is classified as being either non-licenced work, notifiable non-licenced work or licenced work. To determine whether the work is licensable or non-licensable, a risk assessment needs to be carried out by professionals. The risk assessment should include the details of the type and quantity of the asbestos, the expected level of exposure, how exposure will be reduced (for example, using PPE/RPE, controlled wetting, ventilation), decontamination procedures, how the waste will be managed and emergency procedures.
Licenced higher risk asbestos work includes that where the asbestos is not sporadic and is of low density, i.e it is difficult to control the spread of it while working with it. Higher risk also includes work where the risk assessment cannot clearly demonstrate that the control limit will not exceed 0.1 asbestos fibres per centimetre of air. Licenced work can include, for example, work with asbestos insulation and where the risk assessment demonstrates that the work is not of short duration.
Notifiable non-licenced work (NNLW) is work where the employer / controller must report the work to the relevant authority, must ensure medical examinations are carried out and maintain registers of work. The more friable the material being worked on, the more of a hazard it will be. Most work that involves friable materials will be NNLW and the least friable work will be non-reportable. Friable means where the asbestos is likely to be a powder or expose itself to the air. Examples of notifiable non-licensed work includes that where asbestos insulating boards are removed, work involving asbestos insulation and removal of asbestos cement products. This kind of work can also include the removal of decorative coatings using steaming or gelling methods.
The third type of asbestos removal or working on it, is that which is non-licenced. If the risk assessment dictates that this can be carried out, this work can include cleaning up small quantities of fine debris and short duration work. This work can also include drilling of textured decorative coatings for insulation of fixtures and the maintenance of asbestos products. It can also include maintenance work, example, painting an asbestos board that is in good condition.
The Control of Asbestos Regulations 2012 outlines how the carefully work with asbestos. These regulation procedures are too exhaustive to mention here but they cover everything from preparing the area worked on to waste disposal. Employers and those in control of managing asbestos have a duty to comply with these regulations. Asbestos awareness training would be mandatory for employees if they are working on a building in such a way that there is a risk of asbestos becoming exposed. Emergency and medical procedures should be in place in case a hazard becomes reality.