On the SSLp4 Credit Language section, the titles of the tables are missing.
I do not have the v2009 edition, but in v4, Table 1 reads "Mitigation ratios for projects in large metropolitan or micropolitan statistical areas (pop. 250,000 or more)" and Table 2 title is "Mitigation ratios for projects in small metropolitan or micropolitan statistical areas (pop. less than 250,000)"