--- title: "NIS 2: guides and insights, page 2" description: "Practical guides to the NIS 2 Directive and Legislative Decree 138/2024: who is in scope, which obligations apply to essential and important… Page 2." canonical: https://www.aegister.com/en/cms/keyword/nis-2/page/2/ url: /en/cms/keyword/nis-2/page/2/ lang: en --- ![](https://www.aegister.com/static/images/header-news.webp) # NIS 2 Practical guides to the NIS 2 Directive and Legislative Decree 138/2024: who is in scope, which obligations apply to essential and important entities, and how to organise documents, measures and deadlines. ## All articles April 16, 2026 ### [ACN NIS Platform: Relevant Suppliers and What Organizations Must Submit](https://www.aegister.com/en/cms/insights/acn-nis-platform-relevant-suppliers-filing/) The ACN platform requires NIS subjects to submit a filtered list of 'relevant NIS suppliers' during the annual update window (15 April-31 May) - not … [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [Determinazione 127437/2026](https://www.aegister.com/en/cms/keyword/determinazione-1274372026/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +8 April 15, 2026 ### [ACN NIS Platform: Registration, Annual Update, and Continuous Update](https://www.aegister.com/en/cms/insights/acn-nis-platform-registration-annual-continuous-update/) The ACN NIS platform operates a recurring compliance cycle: registration (1 January-28 February), annual update (15 April-31 May), and continuous upd… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [Determinazione 127437/2026](https://www.aegister.com/en/cms/keyword/determinazione-1274372026/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +8 April 15, 2026 ### [ACN NIS Platform Roles, Access, and User Association](https://www.aegister.com/en/cms/insights/acn-nis-platform-roles-access-user-association/) The ACN platform determination defines a governed role model for NIS compliance: point of contact, substitute, CSIRT contact, segreteria, and operato… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [Determinazione 127437/2026](https://www.aegister.com/en/cms/keyword/determinazione-1274372026/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +8 April 14, 2026 ### [New NIS Subjects in 2026: Incident-Notification and Baseline-Measure Deadlines](https://www.aegister.com/en/cms/insights/new-nis-subjects-2026-incident-notification-deadlines/) The ACN 2026 timing determination sets a distinct implementation path for entities first listed in the Italian NIS perimeter during 2026: significant… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [CSIRT](https://www.aegister.com/en/cms/keyword/csirt/) +8 April 14, 2026 ### [ACN NIS 2026 Platform Rules and New Deadlines: Master Overview](https://www.aegister.com/en/cms/insights/nis-acn-platform-2026-new-deadlines-overview/) ACN's April 2026 package sets new NIS deadlines for subjects listed for the first time in 2026 (incident notification from 1 January 2027, baseline m… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [Determinazione 127437/2026](https://www.aegister.com/en/cms/keyword/determinazione-1274372026/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +6 February 24, 2026 ### [NIS 2 Executive Board Reporting: How to Turn Audit Outputs into Governance Decisions](https://www.aegister.com/en/cms/insights/nis2-executive-board-reporting-audit-governance/) Practical executive reporting model for NIS 2 audit outcomes with minimum KPI set, traffic-light escalation, and evidence-based closure visibility fo… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Incident notification](https://www.aegister.com/en/cms/keyword/incident-notification/) +9 February 23, 2026 ### [Prioritizing NIS 2 Audit Findings: From Gap List to Remediation Execution](https://www.aegister.com/en/cms/insights/nis2-audit-findings-prioritization-remediation-execution/) Severity-to-execution model for NIS 2 audit findings with dependency-aware sequencing, triage criteria, and evidence-based closure tracking for remed… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +8 February 23, 2026 ### [Recurring NIS 2 Documentation Patterns and Quick Wins for Baseline Readiness](https://www.aegister.com/en/cms/insights/nis2-recurring-documentation-patterns-quick-wins/) High-frequency recurring patterns in NIS 2 documentation and a quick-win framework for fast remediation of governance structure, evidence traceabilit… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Documentation audit](https://www.aegister.com/en/cms/keyword/documentation-audit/) +6 February 20, 2026 ### [UNI/PdR 174:2025 for NIS Organizations Certified to ISO 27001: What It Changes Operationally](https://www.aegister.com/en/cms/insights/uni-pdr-174-2025-nis-iso-27001/) ACN published UNI/PdR 174:2025 as an operational bridge between ISO/IEC 27001 and NIST CSF 2.0 for NIS-scoped organizations. It helps ISO-certified e… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +7 February 20, 2026 ### [NIS 2026 Reminder: 8 Days Left Before the 28 February Registration Deadline](https://www.aegister.com/en/cms/insights/nis-2026-registration-deadline-february/) Organizations in scope of Italy's NIS regime have until 28 February 2026 to complete annual registration via the ACN Services Portal. Both new and pr… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) 28 febbraio +6 February 20, 2026 ### [ACN Adopts Incident Taxonomy Under Law 90/2024: What Obligated Entities Must Do Now](https://www.aegister.com/en/cms/insights/acn-incident-taxonomy-law-90-2024/) ACN adopted the incident taxonomy under Law 90/2024 via the Determina of 9 February 2026. Obligated entities must now report incidents within 24 hour… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Incident notification](https://www.aegister.com/en/cms/keyword/incident-notification/) +7 February 19, 2026 ### [NIS 2 Incident Management Documentation Review: Method, Gaps, and Remediation Priorities](https://www.aegister.com/en/cms/insights/nis2-incident-management-documentation-review-method/) Practical review model for NIS 2 incident-management documentation covering process integrity, notification readiness, role accountability, and crisi… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Incident notification](https://www.aegister.com/en/cms/keyword/incident-notification/) +8 February 19, 2026 ### [NIS 2 Compliance Documentation Audit: Interview and Evidence Collection Workflow](https://www.aegister.com/en/cms/insights/nis2-audit-interview-evidence-collection-workflow/) Structured interview and evidence collection workflow for NIS 2 documentation audits, with a 6-domain model, evidence maturity scale, and gap-to-reme… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +6 February 18, 2026 ### [Cross-Document Coherence in NIS 2 Documentation: Audit Method and Controls](https://www.aegister.com/en/cms/insights/nis2-cross-document-coherence-audit-method/) Five-dimension coherence audit model for NIS 2 documentation sets covering terminology, roles, cross-references, review cycles, and incident flow con… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +7 February 18, 2026 ### [NIS 2 point of contact and CSIRT contact: designation, duties and deadlines](https://www.aegister.com/en/cms/insights/nis2-point-of-contact-csirt-role-accountability/) ACN Determination 127437/2026 sets four roles for NIS entities: point of contact, substitute, CSIRT contact and optional substitutes of the CSIRT con… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [NIS 2 baseline measures](https://www.aegister.com/en/cms/keyword/nis-2-baseline-measures/) [Determinazione 127437/2026](https://www.aegister.com/en/cms/keyword/determinazione-1274372026/) +9 February 18, 2026 ### [NIS 2 Documentation Audit Checklist: Operational Method for Baseline Readiness](https://www.aegister.com/en/cms/insights/nis2-documentation-audit-checklist-baseline-readiness/) Five-block operational checklist for NIS 2 documentary audit covering requirement mapping, evidence maturity, cross-document consistency, and governa… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Documentation audit](https://www.aegister.com/en/cms/keyword/documentation-audit/) +7 February 17, 2026 ### [NIS 2 Supply-Chain Security: Managing Critical Suppliers and High-Impact Procurements](https://www.aegister.com/en/cms/insights/nis2-supply-chain-security-critical-suppliers/) NIS 2 supply-chain security is a governance obligation covering supplier identification, risk assessment, contractual integration, and lifecycle moni… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [NIS 2 baseline measures](https://www.aegister.com/en/cms/keyword/nis-2-baseline-measures/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +9 February 17, 2026 ### [NIS 2 Evidence Matrix and Board-Approval Readiness: Practical Audit Method](https://www.aegister.com/en/cms/insights/nis2-evidence-matrix-board-approval-readiness-audit/) Practical method for building an NIS 2 evidence matrix with maturity scoring and board-approval readiness checks for baseline compliance audit. [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +7 February 16, 2026 ### [NIS 2 Requirement-to-Document Mapping: Building a Defensible Audit Structure](https://www.aegister.com/en/cms/insights/nis2-requirement-document-mapping-audit-structure/) Practical method for mapping NIS 2 baseline requirements to primary documents, supporting evidence, and governance controls to build a defensible aud… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) [Governance](https://www.aegister.com/en/cms/keyword/governance/) +6 February 16, 2026 ### [NIS 2 Compliance Documentation Audit: How the Scoring Methodology Works](https://www.aegister.com/en/cms/insights/compliance-documentation-audit-nis2-scoring-methodology/) Aegister’s scoring methodology evaluates NIS 2 documents at requirement-point level across 5 dimensions on a 0-4 scale. This guide covers the scoring… [NIS 2](https://www.aegister.com/en/cms/keyword/nis-2/) [NIS 2 baseline measures](https://www.aegister.com/en/cms/keyword/nis-2-baseline-measures/) [ACN](https://www.aegister.com/en/cms/keyword/acn/) +7