Previous TIPs:
This is a list of previous versions of the TIP that have since become
obsolete, but are available on this web site for information
only and have been replaced by the above referenced TIP.
They are also the final version, including any amendments made between updates.
2016-21 TIP | 
2013-18 TIP | 
2010-15 TIP | 
2007-12 TIP | 
2005-10 TIP | 
2003-08 TIP | 
2001-06 TIP
 | 
1999-04 TIP
 | 
1975 TIP