India’s Bureau of Indian Standards (BIS) has expanded its mandatory certification scope to include programmable logic controllers (PLCs) and human-machine interfaces (HMIs), effective from 1 October 2026. Announced on 24 April 2026, the move requires compliance with the updated standard IS 13252:2025 — technically aligned with IEC 61131-2:2024. Exporters, system integrators, and industrial automation suppliers targeting the Indian market must now prioritize certification readiness, especially those engaged in factory automation hardware trade and deployment.

Event Overview

On 24 April 2026, the Bureau of Indian Standards (BIS) issued an official directive placing PLCs and HMIs under the compulsory BIS certification regime. The applicable standard is IS 13252:2025, which is identical to IEC 61131-2:2024. A transition period of 18 months is granted, meaning that as of 1 October 2026, no PLC or HMI unit without a valid BIS license may be imported into or sold in India.

Industries Affected

Direct Exporters of PLCs and HMIs

Manufacturers and exporters — particularly those based in China — supplying PLCs and HMIs directly to Indian distributors or end users are directly impacted. Non-compliant units will be denied customs clearance or market access after the deadline, potentially disrupting shipment schedules and contractual obligations.

Industrial Automation System Integrators

System integrators incorporating third-party PLCs or HMIs into turnkey automation solutions for Indian clients face increased compliance responsibility. Their projects may stall if core components lack BIS certification, affecting project timelines, warranty terms, and client trust.

Supply Chain and Distribution Partners

Indian importers, distributors, and channel partners handling PLC/HMI inventory must verify BIS licensing status before accepting new stock or renewing purchase orders. Unlicensed inventory acquired pre-deadline may remain saleable only until exhausted — but cannot be replenished post-1 October 2026 without certification.

What Enterprises and Practitioners Should Monitor and Do Now

Track official BIS implementation guidance

While the mandate is confirmed, BIS has not yet published detailed application procedures, fee structures, or laboratory accreditation requirements specific to IS 13252:2025. Stakeholders should monitor BIS’s official portal and authorized certification bodies for procedural updates, especially regarding test report acceptance and domestic representation rules.

Identify and prioritize certified product lines

Exporters should audit their PLC and HMI portfolios to identify models covered under the scope. Focus initial certification efforts on high-volume, high-revenue SKUs destined for India — rather than blanket certification across all variants — to optimize time and cost.

Distinguish between policy announcement and operational enforcement

The 24 April 2026 date marks formal notification, not enforcement. Customs authorities and state-level inspectors are unlikely to enforce immediately on 1 October 2026 without prior notice or capacity building. However, delays in initiating applications now may result in bottlenecked approvals closer to the deadline.

Prepare documentation and engage BIS-recognized labs early

Required documentation typically includes technical specifications, circuit diagrams, user manuals, and test reports. Since IS 13252:2025 aligns with IEC 61131-2:2024, existing IEC-compliant test data may support—but not replace—the BIS process. Engaging a BIS-empanelled lab at least six months ahead helps avoid scheduling delays.

Editorial Perspective / Industry Observation

From an industry perspective, this expansion signals BIS’s broader shift toward regulating functional safety and interoperability in industrial control systems — not just electrical safety. Analysis来看, it reflects growing alignment with global standards, but also introduces localized conformity hurdles for foreign suppliers. Observation来看, the 18-month window is relatively generous compared to past BIS rollouts (e.g., for IT equipment), suggesting BIS anticipates complexity in testing and documentation. It is better understood as a regulatory signal with near-term operational consequences — not merely a procedural update. Continuous monitoring is warranted, as BIS may issue clarifications on scope exclusions (e.g., embedded HMIs within larger machines) or phased enforcement.

This development underscores how national standards regimes increasingly shape cross-border industrial hardware trade — especially in emerging markets where certification infrastructure is still maturing. For affected enterprises, proactive alignment with IS 13252:2025 is less about compliance per se, and more about sustaining market access continuity. The mandate does not yet indicate broader coverage of other automation devices (e.g., motion controllers or industrial gateways), but serves as a clear precedent.

Information Source: Official notification issued by the Bureau of Indian Standards (BIS) on 24 April 2026. Further procedural details remain pending and are subject to official BIS publications. Ongoing observation is recommended for updates on accredited testing laboratories, application forms, and potential scope clarifications.