149. Without prejudice to section 19 of the Act, an employer shall—

(a) assess any risk to the safety or health of employees and any possible effect on the pregnancy of, or breastfeeding by, employees, resulting from any activity at that employer's place of work likely to involve a risk of exposure to any agent, process or working condition as referred to in Part A of Schedule 8 and, for that purpose determine the—

(i) nature,

(ii) degree and

(iii) duration

of any employee’s exposure to any agent, process or working condition;

(b) take the preventive and protective measures necessary to ensure the safety and health of such employees and avoid any possible effect on such pregnancy or breastfeeding; and

(c) without prejudice to paragraph (a) and the relevant statutory provisions relating to chemical agents and to the occupational exposure limits laid down in any relevant approved code of practice—

(i) assess any risk to safety or health likely to arise from exposure of a pregnant employee to an agent or working condition listed in Part B of Schedule 8 resulting from any activity at that employer's place of work,

(ii) assess any risk to safety or health likely to arise from exposure of an employee who is breastfeeding to an agent or working condition listed in Part C of Schedule 8 resulting from any activity at that employer's place of work and

(iii) ensure that any such employee is not required to perform duties for which the assessment reveals such risk.