It is not a detriment for an employer to have a policy of refusing voluntary overtime to any worker who refuses to sign an opt-out agreement. The EAT has ruled that this is a reasonable policy because the employer also owes a statutory duty to take all reasonable steps to secure compliance with the 48-hour limit (regulation 4(2), WTR) (Arriva London South Limited v Nicolaou [2011] UKEAT/0293/11).