If clean- and dirty-equipment hold times are established during validation and maintained under properly defined and controlled
conditions, the need to monitor clean- or dirty-hold times is not necessary. Avoiding these steps can result in savings of
time and resources as well as potential regulatory exposure.
Richard J. Forsyth is an associate director of worldwide GMP quality with Merck & Co., Inc, WP53C-307, West Point, PA. 19486, tel. 215.652.7462,
fax 215.652.7106, email@example.com
Submitted: Nov. 16, 2007. Accepted: Dec. 20, 2007.
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