You can find information about workshop registration at http://acl2014.org/Registration.htm and register from the link there. CMCL is a one-day workshop.
Travel & general information about conference venue
CMCL is collocated with the Annual Meeting of the Association for Computational Linguistics in Baltimore, Maryland. General information about getting to Baltimore can be found here: http://acl2014.org/Travel.htm
Accommodation information can be found here: http://acl2014.org/Accommodation.htm