|Citizens to Advance Public Education v. Porter, 237 N.W. 232 (1976)
In the Porter case, the court of appeals of Michigan held that shared time secular educational programs, which provide secular instruction for nonpublic and church related schools, "Do not offend the Michigan and U.S. Constitutions" (Porter at 238).
The shared time secular education programs may be operated on premises leased from nonpublic schools but the programs must be (1) under the authority and control of public schools, (2) operated by public school employees and (3) open to all students eligible to attend public schools.
The Michigan Appeals Court, furthermore, emphasized that shared time programs, like Released Time programs,
Merely enable parents to take advantage of both the secular education offered by our public schools and the sectarian education by parochial schools (Porter at 238).
The court added that it recognizes Zorach v. Clauson, 343 U.S. 306 (1952) as controlling precedent in the area of Released Time (Porter, at 237). The guidelines set forth in Zorach must be followed when establishing a Released Time program for public students in Michigan.