1.4 The BLNST, Your Results, and What Happens After the CRE

Key Takeaways

  • Passing the Basic Law and National Security Law Test (BLNST) is an entry requirement for all civil service jobs, whatever result a candidate obtained in the earlier Basic Law Test.

  • The BLNST (Degree / Professional Grades) has 20 bilingual multiple-choice questions in 30 minutes, and 10 or more correct answers is a pass of permanent validity.

  • Since May 2025 the CSB has offered a year-round Digitalised BLNST at its Recruitment Centre, and from June 2025 it no longer holds a paper BLNST on the same day as the Hong Kong CRE.

  • A candidate who is absent from or fails the Digitalised BLNST cannot take it again for three months.

  • CRE results arrive within one month as an electronic result certificate, after which candidates apply to recruiting departments directly.

Last updated: October 2026

1.4 The BLNST, Your Results, and What Happens After the CRE

Quick Answer: Every civil service applicant must pass the Basic Law and National Security Law Test (BLNST). The degree or professional level version is a 30-minute bilingual test of 20 multiple-choice questions. At least 10 correct answers is a pass, and a pass is permanently valid for all civil service jobs. Since May 2025, Hong Kong candidates take the Digitalised BLNST year-round at the CSB Recruitment Centre. A paper BLNST is still held alongside CRE sittings outside Hong Kong.

Why the BLNST belongs in CRE preparation

The BLNST is a separate test, not a fourth CRE paper. However, the CSB publishes it on the same webpage, the overseas sittings combine both, and the recruitment timetable treats them together. For the 2026 joint recruitment exercise, local candidates without a BLNST pass had to obtain one by 5 December 2026 to be considered for appointment. A strong CRE result does not help if the BLNST pass arrives too late.

BLNST format and pass standard

FeatureBLNST (Degree / Professional Grades)
Questions20 multiple-choice
Time30 minutes
LanguageBilingual (English and Chinese)
Pass standardAt least 10 of 20 correct
ValidityPermanent; a pass holder is not arranged to sit any BLNST again
Applies toAll civil service jobs

Key rules:

  • Earlier Basic Law Test results do not count. All candidates must pass the BLNST, regardless of whether or how they passed the old Basic Law Test (BLT).
  • Results from other organisers usually do not count. Unless otherwise specified, a BLNST organised by the Independent Commission Against Corruption or another body not for civil service recruitment is not acceptable.
  • Education Bureau results are mutually accepted. A pass in the BLNST (degree level) run by the Education Bureau for teaching posts is accepted for all civil service jobs, and vice versa.
  • You may apply without a pass, and arrangements will be made during recruitment, but you will not be appointed without one.

Digitalised BLNST and the three-month suspension

The CSB launched the Digitalised BLNST (Degree / Professional Grades) in May 2025. It runs year-round at the Recruitment Centre, General Grades Office, 37th Floor, Revenue Tower, 5 Gloucester Road, Wan Chai. From June 2025, the CSB no longer holds a paper-based BLNST on the same day as the CRE in Hong Kong. Under the CSB's performance pledge, Digitalised BLNST results are issued on the day of the examination.

Warning

The Digitalised BLNST has a three-month suspension period. The CSB's own example: a candidate absent or failing on 4 September 2026 is suspended from 5 September to 4 December 2026, so the earliest retake is 7 December 2026, too late for a 5 December deadline. Book the test early.

What the BLNST covers

The scope is the text of the Basic Law, including all its annexes, instruments, attachments and appendices, and the National Security Law (the Law of the People's Republic of China on Safeguarding National Security in the Hong Kong Special Administrative Region). The Basic Law has 160 articles; the National Security Law has 66 articles.

The CSB's official sample questions show the style: precise article-based recall. Facts confirmed by the official sample answers include:

Topic in the official samplesConfirmed answer
Article 3: who forms the executive authorities and legislaturePermanent residents of Hong Kong
Article 63: who controls criminal prosecutionsThe Department of Justice
Article 125: name for the shipping register's certificates"Hong Kong, China"
Article 158: courts interpreting provisions within the limits of autonomyBy authorisation of the NPC Standing Committee
Annexes I and II: Candidate Eligibility Review Committee reviewsCandidates for Chief Executive, Election Committee members and Legislative Council members
Legal basis of the National Security LawThe PRC Constitution, the Basic Law, and the NPC Decision on establishing and improving the legal system and enforcement mechanisms for safeguarding national security in the HKSAR
National Security Law Article 2Rights and freedoms must not contravene the provision that Hong Kong is an inalienable part of the PRC

Prepare by reading the full texts, not summaries: the official samples test annexes as well as the main articles, and several use "which is/are not correct" formats with combined options.

After the CRE: results and applications

  1. Results: within one month, as an electronic result certificate (Section 1.2). Download and keep it.
  2. Review: email the CSEU within two weeks of the certificate's issue date if needed. Papers with Level 2 or a Pass are not reviewed.
  3. Apply for posts: apply to the recruiting department or grade directly, in response to recruitment advertisements on the CSB website and elsewhere. The CRE application form is not a job application.
  4. Department vetting: departments check your academic and professional qualifications and may set their own tests. For the AO, EOII, AIO(G), ATOII, MSOII and TOII posts this is the three-hour Joint Recruitment Examination.
  5. Interviews and appointment: shortlisted candidates are interviewed. Only candidates with a BLNST pass are considered for appointment.

Using results across applications

Because passing CRE results are permanent and can be combined across sittings, plan your attempts around the grades you want:

  • Aim first for the results that cover the largest number of target grades (usually Level 2 in both language papers).
  • Add the AT Pass if any target grade needs it.
  • Keep IELTS validity in mind if you rely on IELTS for UE.
  • Take the Digitalised BLNST early, so that the three-month suspension cannot collide with a recruitment deadline.
Loading diagram...
BLNST decision path for a degree-level applicant
Test Your Knowledge

A candidate passed the old Basic Law Test in 2019 and now applies for an Executive Officer II post. What does the CSB require regarding the Basic Law and National Security Law Test?

A

Nothing, because a Basic Law Test pass is permanently valid

B

The candidate must pass the BLNST to be considered for appointment

C

The candidate must pass the BLNST only if the CRE Aptitude Test was failed

D

The candidate may replace the BLNST with Level 2 in Use of Chinese

Test Your Knowledge

A candidate is absent from a Digitalised BLNST appointment on 4 September 2026. According to the CSB's example, when is the earliest date the candidate can take the Digitalised BLNST again?

A

7 December 2026

B

5 September 2026

C

4 October 2026

D

5 December 2026

Test Your Knowledge

According to the BLNST official sample questions, which body controls criminal prosecutions under Article 63 of the Basic Law?

A

The Hong Kong Police Force

B

The Independent Commission Against Corruption

C

All of the law enforcement agencies jointly

D

The Department of Justice

Sections you finish are checked off in the contents.