Tottoko Hamtarou no Tottoko Taisetsu!! Koutsuu Rule
とっとこハム太郎のとっとこ大切!! 交通ルールTottoko Hamtarou no Tottoko Taisetsu!! Koutsuu Rule
The story
OVAHamtaro and the Ham-Hams learn how to stay safe on the road in this 14-minute long special produced by the Tokyo Emergency Service.
(Source: Hamataro Wikia)