Pre-schools and early intervention centres have been advised to conduct engagements with parents online. - The Straits Times/ANN SINGAPORE, May 16 (The Straits Times/ANN): External visitors, including parents of newly enrolled children, will not be allowed to enter pre-school premises and early intervention centres from Sunday (May 16). Only those who are needed to support the centre operations, such as for urgent repairs, or perform necessary functions, such as for licensing and auditing, will be allowed in. Announcing tightened safe management measures (SMMs) on Saturday (May 15), the Early Childhood Development Agency (ECDA) advised pre-schools and early intervention centres to conduct engagements with parents online.