mandatory - ordered by a law or rule - ตามข้อบังคับ Articles found: Phone use must now be handsfree if driving (14/10/2022) Restaurants warned over 10% service charge (05/10/2022) Masks rule to stay for public transport (30/09/2022) Covid to be downgraded from Oct 1 (08/09/2022) Flight searches out of Hong Kong jump 290% with Bangkok top pick (11/08/2022)