Operated by SMRT
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Opp Choa Chu Kang Stn → Choa Chu Kang Int | 06:50 | 22:51 | 9–13 min | 10–33 min | 10–12 min | 10–44 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.