threaten and make Submitted for approval, the following factors have been taken which is into account : - to impose further strain on our (a) Recent developments it desirable that plans for effecting further tanker resources economies in the use of imported petroleum products should be prepared. It would take at least six months to convert even the 5,000 vehicles suggested and it is felt that the nucleus of practical experience which these vehicles would provide is a condition precedent to any large scale development which a serious change in the imported fuel position might here after render necessary.