Today's sign up deadline: for teams or for individuals?

What is today's Team Bike Challenge sign up deadline for? Is it for creating teams or for signing individual riders to teams?

Speficially: can riders who create an account on the site after 5/6 still join a Team Bike Challenge team and have their rides count for points? I would imagine that there are a few teams in the Company Bike Challenge who would like to add new hires to their existing teams even after today.

Also, since the Bike to Work day is quite visible and could be used as a team recruiting tool, it would be a shame if BTWD riders couldn't then join the Team Bike Challenge for the rest of the month. Being part of the TBC / CBC could serve as a bit of extra motivation to keep some riders bike commuting beyond just on BTWD.