Acas Chair Rita Donaghy said: "A lot of organisations are under the impression that the regulations will not affect them – this simply is not true. Age discrimination can affect employees of any age, not just the young and old."
The legislation comes into effect in October – but Donaghy cited research from the DTI and Department of Work and Pensions suggesting that 80% of UK organisations are not training or informing their staff about it.
The new employer guidance covers training, equal opportunities, recruitment, promotion, performance appraisals, sickness pay, conditions, benefits, redundancy, pensions and retirement.