Singapore Entry Guide: SG Arrival Card and No-Boarding Directive Rules

If you are travelling to Singapore by air, check the SG Arrival Card and entry-document rules before check-in. Under Singapore's border security framework, missing required entry documentation can lead to additional checks or boarding problems at your departure airport.

TL;DR: Singapore can direct an airline to stop a traveller from boarding if the traveller is identified as a prohibited or undesirable immigrant or does not meet entry requirements. Most foreign visitors must submit the free SG Arrival Card within 3 days before arrival, including the arrival day; official exceptions apply. Except for Singapore passport holders, passports must have at least 6 months' validity. Check whether your travel document requires a visa before check-in.

This guide explains Singapore's No-Boarding Directive (NBD) and how to ensure your travel documents comply with the Immigration & Checkpoints Authority (ICA) rules, based on the official sources linked below.

Direct Answer: The Singapore NBD & Entry Checklist

1. What is the Singapore No-Boarding Directive (NBD)?

In force for air travel since January 30, 2026, the NBD is an upstream screening measure used by the Singapore Immigration & Checkpoints Authority (ICA). It can prevent identified prohibited or undesirable travellers, and travellers who do not meet entry requirements, from boarding a flight to Singapore.

• How It Works: ICA screens advance traveller information received from airlines, together with SGAC information and other data. It may then issue an NBD notice to the airline.
• NBD or Additional Check: If an airline receives an NBD notice for a traveller, it must deny boarding. In other cases, ICA may require the airline to perform additional checks, such as verifying a visa or SGAC submission, before allowing the traveller to board. ICA does not state that every SGAC omission automatically produces an NBD.
• After a Denial: There is no immediate appeal mechanism. A traveller who still wishes to enter Singapore must seek approval through the ICA Feedback Channel and, if approval is granted, book a new flight.

2. Entry issues that can lead to boarding problems

ICA distinguishes an NBD from an airline's additional document check. Its general entry guidance also states that travellers who fail to submit the required SGAC may be denied entry into Singapore.

Travellers can face boarding or entry problems due to issues such as:

1. Missing SG Arrival Card (SGAC): You have not submitted the required digital declaration within the official window and are not covered by an exception.
2. Insufficient Passport Validity: Your passport has less than 6 months of validity remaining on your planned entry date.
3. No Valid Visa: Your passport requires a visa to enter Singapore, and you have not obtained one.

3. Step-by-Step Guide to SG Arrival Card (SGAC) Registration

The SGAC is the electronic version of the former paper disembarkation/embarkation card. Most foreign visitors, including visa-exempt visitors, must submit it. Official exceptions include travellers who transit or transfer without seeking immigration clearance and Singapore citizens, Permanent Residents, and Long-Term Pass holders entering through land checkpoints.

• Submission Window: You can only submit the SGAC within 3 days prior to your arrival date (including the day of arrival). For example, if you arrive on June 25, you can submit it starting June 23.
• Official Portals: Submission is free of charge. Use only the official ICA e-Service website (eservices.ica.gov.sg) or the official MyICA Mobile App. ICA does not support or endorse commercial paid-submission services.

4. Double-Checking SGAC Details

ICA uses advance traveller information, including SGAC data, in its pre-arrival screening. Its NBD announcement describes verification of an SGAC submission as a possible additional check; it does not describe every SGAC error as an automatic NBD.

Before submitting, review all personal particulars, trip details, and the health declaration for accuracy. ICA warns that false health declarations may be prosecuted under the Infectious Diseases Act.

Submit SGAC through the official ICA website or MyICA Mobile app. If you use the eVisaFlow Southeast Asia extension to reuse saved passport, trip, accommodation, and contact details on the official SGAC form, compare every field with your passport and itinerary before submitting.

Pre-Departure Checklist:

1. A passport with at least 6 months' validity, unless you hold a Singapore passport.
2. SGAC acknowledgement email or saved submission confirmation.
3. A valid Singapore entry visa if your travel document is visa-required.
4. For a short-term visit, proof of onward travel, including any ticket or visa required for the next destination.

References

To ensure compliant travel, register and verify your entry documents directly with Singapore ICA:

• Official Singapore Ministry of Home Affairs No-Boarding Directive Response: https://www.mha.gov.sg/media-room/newsroom/appeal-mechanism-under-the-new-no-boarding-directive--and-similar-scheme-for-sea-and-land-checkpoints/
• ICA No-Boarding Directive Press Release: https://www.ica.gov.sg/news-and-publications/newsroom/media-release/ica-to-issue-no-boarding-directives-from-30-january-2026
• Official SG Arrival Card E-Service: https://eservices.ica.gov.sg/sgarrivalcard
• ICA SG Arrival Card requirements and exceptions: https://www.ica.gov.sg/enter-transit-depart/entering-singapore/sg-arrival-card
• ICA general entry requirements: https://www.ica.gov.sg/enter-transit-depart/entering-singapore
• ICA advisory on free official SGAC submission: https://www.ica.gov.sg/public-education/public-advisory-on-the-submission-of-sg-arrival-card-%28sgac%29
• ICA announcement on the 30-day China-Singapore mutual visa exemption: https://www.ica.gov.sg/news-and-publications/newsroom/media-release/mutual-30-day-visa-exemption-arrangement-between-singapore-and-the-people-s-republic-of-china
• Singapore Immigration & Checkpoints Authority (ICA): https://www.ica.gov.sg
• Ministry of Foreign Affairs Singapore: https://www.mfa.gov.sg