If laminated safety glass is to be used in windows in way of lifeboat and embarkation stations, it is clear that they should, if possible, be fitted in push-out or centre line hinged window frames in situations where rapid exit through the windows may be necessary. In other areas it is essential to stay with heat treated toughened glass, with the minimum grain size compatible with the other desired characteristics. In this respect there is clearly a need for a good standardised industry approach to escape windows. These should be reliable and uncomplicated and openable from either side.