Source catalog
The complete set of construction norms and standards is brought together from multiple sources in one searchable reference.
Last reviewed: 2026-09-20
Coverage
527 catalog records: 467 norms and 60 standards. 518 PDFs were downloaded; 521 records have checksum-verified mappings; six reader records expose no file.
Integrity
PDF signatures, sizes, and SHA-256 checksums are verified. Identical files are OCR'd once by hash and deduplicated from retrieval.
Source of record
Citations preserve the document code and PDF page range. The original PDF and competent authority's current publication control in a conflict.