need worst case model for 0.25 and 0.18 micron process

Can you be more specific

i have two files which contain the worst case speed condition for 0.6u process, one for pmos and the other for nmos. they are in BSIM3v3 and i use them with hspice level49 as a library (.LIB) for simulation . now i am searching for worst case of 0.25 and 0.18 micron process, also in BSIM.