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Although the law properly does not restrict the application of these funds to the interregional system, the advice of the Public Roads Administration suggesting a preferential selection of projects conforming to the system has generally been heeded by the State highway departments, with the result that a substantial majority of the projects now being surveyed and planned are of this character.

Sections of the recommended system for which planning provision had thus been made as of October, 31 1943, are shown on the map (fig. 36). Practically all of these projects are still in the surveying stage of planning. t is highly desirable that all of them, as finally planned in detail, shall conform in their design features either to the standards recommended in this report, or to such other general standards as shall hereafter and shortly be adopted by common consent for general application to a system of interregional highways formally and officially agreed upon and designated.

Under the act of 1943.—By recent legislation the Congress has made additional provision for survey and planning of post-war highway construction projects. This provision authorizes expenditure in each State for such planning purposes of an amount of the State’s