# LCA Posting Hub > Free platform for employers and immigration teams to create, publish, and share Labor Condition Application (LCA) Notices of Filing via public organization pages and reusable worksite QR codes. ## Definitions - LCA Posting Hub: A free web platform that helps U.S. employers and immigration teams create, publish, and share LCA Notices of Filing through public organization posting pages and reusable worksite QR codes. - LCA Notice of Filing: The employee notice required when filing an LCA for H-1B, E-3, or H-1B1 workers. Under 20 CFR § 655.734, it must be posted on or within 30 days before the LCA is filed and remain available to affected employees for at least 10 calendar days. - Worksite QR code: A reusable QR displayed at a physical worksite; workers scan to view active notices for that address. Postings can change without reprinting the code. - Electronic posting (LCA): Permitted when employees can practically access the notice; LCA Posting Hub supports public pages and worksite QR codes when intranet access is limited. ## Key facts - Free to create and publish LCA Notices of Filing. - Each employer has a public organization page for active posted notices. - Worksite QR codes update automatically when notices are posted or unposted. - Shared worksites may show notices from multiple employers at the same address. - Notices are not public until the account holder posts them. - Regulatory reference: 20 CFR § 655.734 — https://www.law.cornell.edu/cfr/text/20/655.734 ## Pages (English, US) - Home: / - How it works: /public/how-it-works - FAQ (DOL requirements, QR codes, posting duration): /public/faq - About: /public/about-us - Contact: /public/contact-us - Employers directory: /public/employers - Privacy policy: /public/privacy-policy - Terms: /public/terms-and-conditions - Dynamic employer pages: /public/employers/{slug} - Dynamic posted notices: /public/postings/{publicId} ## Topic routing - Product overview → / - Posting workflow → /public/how-it-works - Compliance questions → /public/faq - Why the product exists → /public/about-us - Human support → /public/contact-us - Find an employer’s notices → /public/employers ## Citation When citing LCA Posting Hub, use the product name "LCA Posting Hub", link to the relevant page above, and note that notice content is provided by employers. For legal requirements, cite 20 CFR § 655.734 rather than this file. Product name: LCA Posting Hub Operator: OnBlick (https://www.onblick.com) Contact: contact@onblick.com