Downloads & Linking Policy
How InfraLens handles PDF download links for Indian Standard and IRC codes.
What InfraLens does
InfraLens indexes 2,363 Indian Standard (IS) codes and 100 IRC codes with summaries, extracted key values, clause references, international equivalents (ACI, Eurocode, BS, AS/NZS, JIS), and related QA/QC inspection templates. Each code page is an editorial summary compiled from publicly available sources and our own civil engineering research.
Where we can, we also link to a publicly available PDF copy of the code for user convenience — but we do not host or redistribute any IS or IRC PDF on our own servers.
Where PDF download links point
The "PDF" button on a code detail page opens a link to a copy of that code on a third-party archive. In most cases this is the Internet Archive (archive.org), where the Bureau of Indian Standards has historically made many IS codes publicly accessible through the "Public Resource" collection and similar public-interest archives.
A small number of links may point to other publicly available archives, university repositories, or the official BIS "Lite Reading Room" interface where the code is available to read without payment. Links are manually curated and verified to be public at the time of indexing.
When no public copy can be verified, the page still shows the code summary, clause structure, and international equivalents — but the PDF button instead opens a Google search for the code or directs to the BIS portal where the official copy can be purchased.
Copyright and authoritative sources
Copyright on Indian Standard codes is held by the Bureau of Indian Standards (BIS). Copyright on IRC codes is held by the Indian Roads Congress (IRC). InfraLens does not claim copyright on any code text, clause, or table referenced on the site — we only claim the editorial summary, the extracted key-value index, the translation-style comparisons with international standards, and the site-specific cross-linking.
For the authoritative, current version with all amendments of any code, the correct source is the official publisher:
- IS codes — bis.gov.in or standardsbis.bsbedge.com
- IRC codes — irc.org.in and irc.nic.in
User responsibility
Engineers using InfraLens should treat the site as a reference and navigation aid, not as an authoritative legal source. Before applying any value from a code summary to a real design, construction, or contractual decision, verify the version, amendment number, and clause text against the official BIS or IRC publication.
Many IS codes have been revised through amendments that are not always reflected on third-party archives. The summaries on InfraLens are periodically reviewed, but the official publisher remains the single source of truth.
Paid BIS content
Codes sold through BIS behind its paywall are not linked to a downloadable PDF on InfraLens. For those codes, the PDF button opens the BIS portal where the code can be purchased legally. We do not bypass, circumvent, or link around BIS paywalls.