For September semester participants, lectures begin Monday at 11:00 a.m. Washington, D.C. time—check your email for access details. For July semester participants, please submit your work by the end of September to earn your Certificate of Completion. For one-on-one participants practicing with the engines, please submit your work by Friday. For September semester participants, lectures begin Monday at 11:00 a.m. Washington, D.C. time—check your email for access details. For July semester participants, please submit your work by the end of September to earn your Certificate of Completion. For one-on-one participants practicing with the engines, please submit your work by Friday.