There is a varied number of qualifications here!
In September 2007, new regulations were introduced which govern the qualifications needed by all teachers in the lifelong learning sector in England and Wales. The regulations require all lecturers in the lifelong learning sector who deliver training and qualifications funded by the Learning and Skills Council (LSC) (www.lsc.gov.uk) to gain professional status appropriate to their job role. This is known as Qualified Teacher Learning and Skills (QTLS) status. There are several routes to acquiring QTLS status, depending on your experience and academic qualifications - for example, whether or not you already have a teaching qualification. If you have the appropriate background, it is often possible to begin lecturing and work towards gaining QTLS status by studying part time. A period of five years is allowed for completion of the qualification by lecturers who are already in post. Part of the requirement for acquiring QTLS status
is registration with the Institute for Learning (IFL) (www.ifl.ac.uk). Details about the exact requirements and the training you need to undertake are available from Lifelong Learning UK (LLUK) (www.lluk.org.uk) and City & Guilds QTLS (www.cityandguilds.com/qtls).
If you have never taught before, I would highly recommend fining a local college running the City and Guilds 7303 qualification - Preparing to Teach in the Lifelong Learnng Sector. This can then lead in to further C&G teaching qualifications, once you have a teaching job or placement within a college.
LOTS of information about C&G qualifications here:
http://www.cityandguilds.com/cps/rde/xchg/SID- D7BE6C8D-94E67A49/cgonline/hs.xsl/content_incl ude.xml?fDirectToPage=%2Fhtml%2F774.html
In case you are in