Students make their final selection of modules in each of Michaelmas and Lent by midnight on the Wednesday of week 1.  Student details for each module are on-line via COMET .  These choices become binding exam entries shortly afterwards in each term.

For each student, COMET lists the other modules taken, Engineering Area, previous Tripos performance, college and email address.  Before the deadline COMET stores preliminary choices (made the previous June), giving an approximate indication of numbers (e.g. to assist with laboratory preparation, copying initial lecture handouts etc).