Iowa Code § 151.4: Approved college.

1. A college of chiropractic shall not be approved by the board as a college of recognized standing unless the college requires for graduation or for the receipt of any chiropractic degree the completion of a course of study covering a period of four academic years.

2. An approved college of chiropractic may include but is not limited to offerings of courses of study in procedures for withdrawing a patient’s blood, performing or utilizing laboratory tests, and performing physical examinations for diagnostic purposes. A chiropractor, employed by an approved college of chiropractic and who has been trained to withdraw blood may withdraw blood and instruct, and supervise a student in the withdrawing of blood.