21-CFR-111 & NSF 455-2

SNL SOP to Regulatory Citation Crosswalks

This section defines how federal regulations, industry standards, customer requirements, and internal quality expectations are referenced within the QMS. Level-0 documents contain authoritative regulatory citations; lower-level documents reference L0 rather than citing regulations directly, ensuring single-source citation control.

SNL governs its Quality Management System through a disciplined, three-tier regulatory-citation model that ensures requirements are applied consistently, executed correctly, and proven through auditable evidence. At the foundation, the 21 CFR 111 Master Regulatory Cross-Reference Table centralizes every applicable federal requirement in one location, eliminating interpretation drift and preventing redundant or conflicting citations across SOPs, WINs, and FORMs. Complementing this, the NSF/ANSI 455-2 crosswalk integrates certification and audit requirements directly into the same structure, enabling SNL to operate a single, harmonized system rather than maintaining parallel compliance programs.

Finally, SNL’s structured Risk-Tiering Model (High, Medium, Low Risk) ensures that regulatory controls are applied proportionally to process risk, focusing the highest governance on activities that directly impact product safety, identity, purity, strength, and quality. Together, these three mechanisms create a QMS that is traceable, audit-ready, and deeply aligned with regulatory expectations — ensuring SNL meets all requirements with clarity, consistency, and defensible evidence.

Family Packs MAY restate applicable regulatory citations for clarity and traceability, provided that all citations are sourced directly and verbatim from L0. L0 remains the authoritative master reference; Family Packs do not create or modify regulatory requirements, and may only restate citations to support scoping, audit alignment, and process-family transparency.


A2.1 - 21 CFR 111

This table maps every applicable requirement in 21 CFR 111 to the controlling SOP (WHAT) and the expected Auditable Evidence (AA) that demonstrates compliance.

Format:

Citations:


A2.2 - NSF/ANSI 455-2

This table maps all relevant requirements from NSF/ANSI 455-2 to SNL’s SOPs (WHAT) and the associated Auditable Evidence (AA) generated through WIN and FORM execution. All citations are controlled at Level 0; SOPs, WINs, and FORMs must not duplicate regulatory references.

Format:

Citations:

NSF/ANSI 455-2 Clauses Not Applicable to SNL Scope

The following clauses do not apply to SNL operations due to the facility’s dry-processing scope and operational boundaries. These items relate to wet processing, thermal processing, CIP/SIP systems, full analytical laboratories, or utilities not used in SNL’s processes.


A2.3 - Risk Categorization: High, Medium and Low

This table maps all relevant requirements from NSF/ANSI 455-2 to SNL’s SOPs (WHAT) and the associated Auditable Evidence (AA) generated through WIN and FORM execution. All citations are controlled at Level 0; SOPs, WINs, and FORMs must not duplicate regulatory references.

SNL's Risk Model is defined below.

Risk Tiers: