The report discusses Massachusetts' experiences in implementing P.L. 94-142, the Education for All Handicapped Children Act, draws conclusions regarding integration of federal and state law, and describes placement options available under the law. The context of reform in both the United States and Great Britain is discussed, and the state-wide efforts in implementing the law are recounted. A teacher's and an administrator's view of the law are presented. The case of a British child who spent a year in Western Massachusetts' fully integrated classes is described and her Individualized Education Program cited. Additional examples of the mainstreaming approach are offered, including a deaf and hearing impaired collaborative. Information on parental involvements addresses issues of politics and the balance of power with professionals. Questions of cost are considered as are implications of serving students age 22 and older. A concluding section points out lessons to be learned by Britain from the Massachusetts system. (CL)