What will happen to these funds is uncertain. Some of them, undoubtedly, will be released if higher courts uphold the many separate lower-court rulings now on appeal. Congress has prepared legislation to bring about the release of other moneys and to limit impoundment in the future. But for the moment the issue is cloudy, and all that can be said with certainty is that Mr. Nixon intends to maintain his position, which is that impoundments are fully authorized under existing legislation and that they are essential to the maintenance of economic stability. They will continue to be a major weapon of the administration in budget management and a chief source of conflict between the President and Congress.