Rule 39 explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Rule 39 explains how union office-bearers get recognised as "protected workers". A protected worker is one whom the employer cannot discipline or disadvantage, during a pending industrial dispute, without the written permission of the authority hearing that dispute. The rule sets the dates, the employer's duty to reply, and how the ceiling is shared between unions.
Each registered Trade Union connected with an industrial establishment must send the employer, before 30 April every year, the names and addresses of its officers employed there whom it wants recognised as protected workers (rule 39(1)). A change in an officer must be told to the employer within fifteen days (rule 39(2)). The employer must recognise the workers within fifteen days and send the union a written list, valid for twelve months (rule 39(3)). The ceiling under section 90(4) is one per cent of the workers, minimum five, maximum one hundred. Disputes go to the Central labour officers named in rule 39(5), whose decision is final.
What the Code says about protected workers
Section 90 of the Industrial Relations Code, 2020 freezes conditions of service while a dispute is pending before a conciliation officer, arbitrator, Tribunal or National Industrial Tribunal. Under section 90(3), the employer may not, during that time, alter to the prejudice of a protected worker concerned in the dispute the conditions of service that applied just before the proceeding began, nor discharge or punish that worker, "save with the express permission in writing of the authority before which the proceeding is pending".
The Explanation to section 90(3) defines a protected worker as a worker who is a member of the executive or other office-bearer of a registered Trade Union connected with the establishment and who is recognised as such in accordance with the rules. Section 90(4) fixes the number: one per cent of the total workers employed, subject to a minimum of five and a maximum of one hundred, and leaves the distribution among unions and the manner of choosing to the rules. Rule 39 is that rule. Unions and employers who want advice on the section 90 position can consult our employment and labour law advisory team. Read the section first in our article on section 90.
The Central Rules apply to Central-sphere establishments. Where the State Government is the appropriate Government, the State's own industrial relations rules apply, so check them for State-sphere establishments.
Rule 39 at a glance
| Sub-rule | Who | What | Time |
|---|---|---|---|
| 39(1) | Registered union | Sends the employer names and addresses of officers employed in the establishment who should be protected workers | Before 30 April every year |
| 39(2) | Registered union | Tells the employer of any change in an officer's incumbency | Within 15 days of the change |
| 39(3) | Employer | Recognises workers, subject to s.90(3) and (4), and sends the union a written list | Within 15 days of receiving the names; list runs 12 months from the communication |
| 39(4) | Employer | If names exceed the s.90(4) maximum, recognises only the maximum | On receipt |
| 39(4) provisos | Employer / union | Proportional split among several unions; union selects its own officers if its share is short | Union replies within 5 days of the employer's written intimation |
| 39(5) | Employer or union | Takes recognition disputes to the Central labour officer | Decision final |
Step by step
1. The union's yearly list (rule 39(1))
Only officers who are employed in that establishment can be listed. The rule says the list contains those whom the union, in its own opinion, thinks should be recognised. The deadline is stated as "before the 30th April of every year", which means the list is an annual exercise, not a one-time filing.
If you handle HR for a Central-sphere establishment, calendar this date. The rule does not say what happens if the date is missed, so the safer course is to send the list on time. For help setting up the register and the diary of dates, see our labour law compliance service.
2. Changes in office-bearers (rule 39(2))
If a listed officer resigns, is replaced or otherwise changes, the union must tell the employer within fifteen days. The rule does not say what form the intimation takes; a dated letter with proof of delivery is the practical answer.
3. The employer's recognition (rule 39(3))
Within fifteen days of receiving the names, the employer must, subject to section 90(3) and (4), recognise the workers and communicate in writing to the union the list of workers recognised, "for a period of twelve months from the date of such communication". The twelve months run from the employer's letter, not from 1 April or from the union's list.
4. When there are too many names (rule 39(4))
If the total names received exceed the section 90(4) maximum for the establishment, the employer recognises only that maximum number. Where there is more than one registered union, the employer distributes the maximum so that each union's recognised protected workers are "practicably" in the same proportion as the membership figures of the unions. The employer must write to the President or Secretary of each union with the number allotted.
If a union's allotted number is less than the officers it listed, that union chooses which officers are recognised and must tell the employer within five days of receiving the employer's written intimation.
Example
A Central-sphere establishment has 620 workers, so one per cent is 6.2. The rule text does not say how a fraction is treated, so the employer should document its counting method and apply it consistently. Suppose the ceiling works out as six. Union A (60 per cent of members) and Union B (40 per cent) have each listed five officers. The employer must split six in roughly that proportion, tell both unions in writing, and each union then picks which of its officers are covered, within five days.
5. Disputes (rule 39(5))
Any dispute between the employer and a registered union on recognition of protected workers goes to the Deputy Chief Labour Commissioner (Central), the Regional Labour Commissioner (Central) or the Assistant Labour Commissioner (Central) concerned. That officer's decision is final under the rule.
Need help with protected workers and union relations?
Employers dealing with several unions, and unions checking their own list, often need a clear view of dates, headcount and the section 90 position. Our employment and labour law advisory team can review your establishment's position and draft the letters that rule 39 calls for.
Key takeaways
- The union's list of protected-worker officers is due before 30 April each year; changes must be told within 15 days.
- The employer must recognise and reply in writing within 15 days; recognition lasts 12 months from that letter.
- The cap is tied to section 90(4): one per cent of workers, minimum five, maximum one hundred.
- With several unions, the maximum is shared in proportion to membership; a union with a short allotment selects its own officers within 5 days.
- Disputes go to the Central labour officers in rule 39(5), and their decision is final.
Read next
- Section 90: conditions of service unchanged during pending proceedings
- Sections 91-92: complaint of contravention and transfer of proceedings
- Rules 40-43: complaint, authorisation and representatives
- Sections 5-6: Registrar and registration of trade unions
Disclaimer: Based on the Industrial Relations Code, 2020 (as enacted) and, where noted, the Industrial Relations (Central) Rules, 2026 (G.S.R. 342(E), 8 May 2026), as on 30 September 2026. The Code is in force from 21 November 2025; some provisions may be notified later, and State Governments make their own rules for establishments where the State is the appropriate Government. Verify the current position before acting.