Most ccTLDs (.org, .uk, and .ca) don’t transfer locks, although .ca added support for registrar locks in 2010.
The ccTLDs .tv and .cc (assigned to Tuvalu and the Cocos Islands) are governed by a 60-day transfer ban. They are popular internationally and are available on the Verisign registry. Additionally, ccTLDs managed by Verisign have a lock period of 30 days after their deletion, which means it’s the same time period as with gTLDs.
The internationally popular TLD of Montenegro (.me) is an exception when it comes to domain locking: if you buy an existing address with this extension, there is no a lock. It’s different, however, if a .me address is re-registered, you cannot resell the domain within the next 60 days. The Montenegrin TLD is especially sought after, since it allows speaking domains. For example, the American social network, MeetMe, bought the address meet.me from its previous owner for $450,000–higher than any other .me domain in history.