SMOKE also includes the BEIS3 prototype, BEIS v3.09. Newer versions of BEIS3 are also available at the EPA’s web site, but have not been integrated into SMOKE. The concepts in BEIS3 are similar to those in BEIS2, except the program Normbeis3 (instead of Rawbio) reads gridded land use data from three files in I/O API input format (BELD3_A, BELD3_B, and BELD3_TOT). Only the BELD3 database can be used to generate these gridded land use files. This database consists of high-resolution (1-km horizontal resolution) land use data for 230 land use types. Instead of the Tmpbio program, the Tmpbeis3 program must be used to create the hourly emissions. For this program, the speciation profile that should be used is different from the profile used in Tmpbio. More information on Normbeis3 and Tmpbeis3 is provided in Section 6.11, “Normbeis3” and Section 6.18, “Tmpbeis3”.