In addition to tables published by [[ASHRAE]] for select latitudes, a computer program called CLTDTAB, released in 1993 and no longer available, cancould behave been used to generate custom CLTD/CLF/SCL tables for a specific zone type for any [[latitude]] and month. This used to allow the use of this method, without interpolation, for any area in the world.<ref name=SML/>
If thea program similar CLTDTAB is used, the results obtained using this method will tend to be very close to the more rigorous TFM Method mentioned earlier.<ref name=SML/> CLTDTAB is no longer available, similar software can be purchased and downloaded.
