National Association of Racing
The National Association of Racing (Japanese: 地方競馬全国協会 Chiho Keiba Zenkoku Kyokai, or NAR) is a public company consisting of the local goverments in Japan (Prefectures, cities/towns/villages or unions of them) who operate horse racing. In Japan, horse racing operated by local goverments are called chiho keiba (Japanese: 地方競馬).
NAR itself does not operate horse races. 
Here is the list of racetracks holding races operated by local goverments (as of January 2014).
Racetrack used to hold prefectural/municipal races
The following courses now hold only Japan Racing Association (JRA) races.
- Sapporo Racecourse (Chuo-ku, Sapporo, Hokkaido) - Prefectural races until 2009
- Hakodate Racecourse (Hakodate, Hokkaido) - Prefectural races until 1997
- Chukyo Racecourse (Toyoake, Aichi) - Prefectural/municipal races until 2002
- Niigata Racecourse (Kita-ku, Niigata, Niigata) - Prefectural races until 2002