An HSC N-determination evidence trail is not a folder assembled at the end of the year to justify a decision already made. It is a contemporaneous record showing the course requirement at risk, what the school told the student to do, the time and support available to correct the problem, what happened next and how the principal’s decision was reached.
This is a high-stakes process. The principal, under authority delegated by NESA, determines whether an HSC course has been satisfactorily completed. A classroom teacher gathers and communicates evidence but should not present an “N-warning” as though it were already an N-determination.
This guide was fact-checked against NESA’s current non-completion and appeals ACE rules and 2026 HSC Rules and Procedures on 3 August 2026. Follow your school’s approved workflow, templates, delegations, privacy controls and current NESA dates.
Download the HSC N-determination evidence register (PDF). Use it as a working checklist alongside your school's authorised student record, not as a replacement for the current NESA forms or local warning-letter process.
Start with the correct threshold
NESA’s 2026 student guide describes three course-completion criteria. The principal must have enough evidence that the student has:
- followed the course
- applied themselves with diligence and sustained effort to the tasks and experiences provided by the school
- achieved some or all course outcomes
For a course with school-based assessment marks, the student must also make a genuine attempt at assessment tasks contributing more than 50% of the available marks. That assessment threshold is important, but it is not a substitute for considering the broader course-completion criteria.
NESA does not set a universal attendance percentage for post-compulsory students. Its ACE rules state that principals may determine an attendance pattern that allows a student to achieve course outcomes, and that absences must be linked to non-completion of course requirements if they form part of a warning. A school attendance trigger may prompt review under local policy; it is not, by itself, a universal NESA rule that automatically produces an N-determination.
Likewise, NESA says an N-determination cannot be made for school-management or conduct reasons such as non-payment of fees, uniform, prohibited activity or misuse of equipment. Keep disciplinary processes distinct from course completion.
What the written warning must do
If a student is at risk, NESA requires a warning as soon as possible and in time for the problem to be corrected. The principal must:
- advise the student in writing of the tasks or actions required
- state the possible consequences
- advise the parent or guardian in writing if the student is under 18
- request written acknowledgement
- issue at least one follow-up warning if the issue remains uncorrected
- retain warning notices and relevant documentation
This is sometimes paraphrased as “two letters”. The more accurate description is an initial written warning and at least one follow-up if the first warning is not effective. A repeated mail merge that gives no real corrective path is weak process and poor intervention.
The warning should be precise enough for the student to act. “Improve effort in maths” is not a corrective action. Better detail would identify the outstanding task or course experience, the relevant requirement, the work to be completed, where help is available, the submission or review point and whom to contact.
The evidence trail at a glance
| Record | What it should establish | Avoid | | --- | --- | --- | | Concern note | Date, observable issue and course requirement at risk | Labels such as “lazy” or unsupported motives | | Evidence reference | Missing work, class evidence, task status or outcome opportunity | Uploading unnecessary personal material | | Warning notice | Required action, consequence and correction window | Vague instructions or a retrospective date | | Delivery record | How and when the notice was provided | Treating silence as acknowledged receipt | | Support record | Reasonable support offered and student response | Promising an outcome or exception without authority | | Follow-up | What was corrected and what remains | Repeating the first letter without updating facts | | Decision brief | Chronology tied to the NESA criteria | Replacing the principal’s judgement with a score |
Store the records in your school’s authorised system. A private teacher spreadsheet may help organise follow-up, but it should not become the only institutional record if the teacher leaves or access changes.
Build the chronology from observable facts
The strongest chronology is boringly specific. A record might show:
- 12 May: investigation due; no response submitted
- 13 May: teacher spoke with student and checked whether an approved illness/misadventure process applied
- 15 May: written warning issued through the school process, identifying the investigation and two incomplete course experiences
- 19 and 21 May: lunchtime support offered; student attended once and completed the first section
- 29 May: agreed correction point; partial work received
- 2 June: follow-up warning updated the work still required and the next review date
This is an illustration, not a NESA-prescribed timeline. Your dates must allow a real opportunity for correction and comply with school procedures. Do not backdate contact, infer delivery, or reconstruct detailed claims from memory when the contemporaneous record does not support them.
Where wellbeing, disability, illness, family circumstances or access barriers may be relevant, involve the authorised school staff and apply adjustment or misadventure procedures as appropriate. The maths faculty should document the learning evidence it is responsible for without circulating sensitive information more widely than necessary.
A student needs a credible way to act on a warning, not another generic revision sheet. Use the six-week HSC maths recovery framework to define small, observable completion goals, then record what your school actually offered and what the student completed.
Separate assessment non-completion from course non-completion
NESA’s ACE page distinguishes the wider course-completion decision from non-completion of HSC school-based assessment. If failure to complete tasks contributing in excess of 50% of the final assessment marks is the basis for an assessment non-completion determination, the principal must submit the determination and advise the student of the consequences and review and appeal rights. The school calculates an assessment mark using submitted tasks and zero for each task not submitted; that information may be needed if an appeal is upheld.
Do not round “in excess of 50%” into “50% or more”. Do not count task raw marks when the assessment schedule assigns different task weightings. Maintain a clear calculation that identifies:
- every scheduled task and its approved weighting
- whether a genuine attempt was made
- the evidence supporting that status
- the cumulative weighting not genuinely attempted
- any approved alternative, estimate, adjustment or school decision affecting the calculation
A student can also be at risk under the general course-completion criteria even where that assessment calculation is not triggered. Ask the HSC coordinator or principal which basis is being considered and keep the evidence aligned to it.
What maths-specific evidence is useful?
Maths generates abundant artefacts, but volume is not the same as relevance. Useful evidence may include:
- dated classwork showing participation in set learning experiences
- submitted and missing formal tasks
- attempts at investigations, modelling or extended problems
- teacher feedback and subsequent work
- records of catch-up opportunities and supplied materials
- outcome or content references tied to the work offered
- learning-platform submission logs, interpreted carefully
- contact and meeting records made under school procedures
An online “last viewed” timestamp does not prove learning, and a blank workbook does not explain why it is blank. Record what the artefact establishes and what it cannot establish. If a student completed comparable work another way, include that authorised evidence.
The HSC maths outcome coverage audit can locate teaching and evidence opportunities at cohort level. Keep the N-determination trail student-specific and access-controlled rather than inserting names or sensitive details into the faculty curriculum map.
Review before escalation
Before a decision brief goes to the principal, a school may find it useful to verify:
- Is the correct course and cohort identified?
- Is the concern tied to a NESA course-completion criterion or assessment requirement?
- Was the student warned in writing soon enough to correct it?
- Was a parent or guardian advised where the student was under 18?
- Was acknowledgement requested and delivery recorded?
- If the problem continued, was at least one follow-up warning issued?
- Do the required actions remain consistent across notices, or are changes explained?
- Are support, adjustments and authorised alternative arrangements recorded?
- Does the assessment-weighting calculation use the approved schedule?
- Are review and appeal steps ready to be communicated by the authorised person?
This checklist supports accuracy; it does not turn the faculty into the decision-maker. NESA requires formal notification of a determination and a right to school review, followed by an avenue of appeal to NESA if the school appeal is unsuccessful. Current forms and submission dates should come from NESA and the school’s HSC coordinator, not an old locally saved copy.
Make the trail useful even when the student recovers
A warning process should remain open to correction. If the student completes the specified work and the concern is resolved, record the evidence, the date and the updated status. Do not delete the institutional record outside authorised retention processes, and do not continue describing the warning as “active” merely because it once existed.
At faculty level, review de-identified patterns. If several students miss the same learning experience, the issue may involve task access, sequencing, communication or timetable design as well as individual participation. The goal is not to normalise warnings; it is to identify risk early enough for students to complete the course.
For the task-design side of that review, the HSC maths assessment-task guide shows how to connect prompts, outcomes and marking evidence without confusing a local faculty workflow with a universal NESA requirement.
FAQ
Does poor attendance automatically cause an HSC N-determination?
No universal NESA attendance percentage automatically determines non-completion for post-compulsory students. A principal may determine an appropriate attendance pattern, and warnings based on absence must connect the absence to course-completion criteria.
Is one N-warning letter enough?
If the issue is not corrected, NESA requires at least one follow-up warning. Warnings should be issued as soon as possible, specify corrective action and give the student time to address the problem.
Can a teacher issue the final N-determination?
The principal determines satisfactory course completion under delegated NESA authority. Teachers provide evidence and follow the school’s authorised warning and escalation process.
Is missing exactly 50% of assessment weight the NESA threshold?
The current ACE rule for non-completion of HSC school-based assessment refers to failure to complete tasks contributing in excess of 50% of the final assessment marks. Check the broader course-completion criteria as a separate matter.