This research was designed to study the issue of observance of the ritually unclean period amongst Modern Orthodox Jews. A sample group of fifty-three congregants filled out a questionnaire survey. The sample was then subdivided into "older" and "younger" groups. Measurements of thirteen dependent variables were broken down into "strict" and "lenient" categories. The study concludes that many laws are being broken overall, that more "lenient" laws are being broken than "strict" ones, and that older congregants are more likely to break the laws than younger ones.