The PDA Letter is the primary communication vehicle to keep PDA members informed about PDA activities and events. New content is posted to the website every Tuesday and the print edition is published ten times per year; each issue contains PDA community news as well as timely information about regulatory developments and manufacturing science. In addition, the PDA Letter includes member contributions, industry interviews, case studies and updates on chapter activities. The PDA Letter is a full color printed publication which is also uploaded to the PDA website – so your ad gets twice the exposure.