VacStak is built to meet USDA Digital Strategy mandates — so our platform earns the trust of federal veterinary institutional partners and serves the full spectrum of the livestock production community.
Overview
The USDA Digital Strategy sets clear expectations for digital products serving the agricultural and veterinary community. VacStak actively audits against these standards — not only to qualify for federal institutional partnerships with USDA-APHIS and veterinary schools, but because these mandates reflect genuinely good platform design for livestock producers and veterinary professionals.
VacStak shares the same compliance infrastructure as AgrStak under NumeriXGPT LLC. Items marked Complete reflect the current deployed state of VacStak's VS-series storefronts.
14
Complete
16
In Progress
6
Planned
Priority Key
Critical — required for USDA-APHIS federal institutional partnership eligibility. | High — strongly recommended for USDA-APHIS alignment and veterinary professional credibility.
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1. Accessibility — Section 508 / WCAG 2.1 AA
8 items
Section 508 of the Rehabilitation Act requires federal agencies and their contractors to make electronic information accessible to people with disabilities. VacStak is actively auditing against WCAG 2.1 AA across all 13 VS storefronts (VS0–VS12).
#
Requirement
Priority
Status
1.1
Keyboard NavigationAll interactive VS calculator elements operable via keyboard alone, with visible focus indicators
Critical
In Progress
1.2
Screen Reader CompatibilityARIA labels, roles, and landmarks implemented across all VS calculator inputs and outputs
Critical
In Progress
1.3
Color ContrastMinimum 4.5:1 contrast ratio for text; 3:1 for large text and UI components across VacStak's navy/teal palette
Critical
Complete
1.4
Alt Text for ImagesAll meaningful images have descriptive alt text; decorative images marked as presentational
Critical
Complete
1.5
Form LabelsAll VS calculator inputs have associated visible labels; error messages are descriptive and accessible
Critical
In Progress
1.6
Responsive / Mobile-FirstAll VS pages fully functional on mobile devices; no horizontal scrolling on mobile viewports
Critical
Complete
1.7
Skip Navigation LinkSkip-to-main-content link available for keyboard and screen reader users across all VS storefronts
High
Planned Q2 2026
1.8
Formal 508 AuditThird-party WCAG 2.1 AA audit completed across all VS storefronts — prerequisite for USDA-APHIS institutional partnership
Critical
Planned Q2 2026
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2. Analytics — GA4 Standards
6 items
Federal digital properties are expected to implement analytics that generate actionable insight without capturing PII. VacStak uses Google Analytics 4 configured to USDA standards, shared with the AgrStak analytics infrastructure.
#
Requirement
Priority
Status
2.1
GA4 ImplementationGoogle Analytics 4 installed across all VS storefronts with consistent tracking ID (G-F5W9BNJ7TD)
Critical
Complete
2.2
No PII in AnalyticsGA4 configured to exclude all personally identifiable information from all VacStak data streams
Critical
Complete
2.3
VS Calculator Event TrackingCustom events for VS calculator inputs, calculations run, Detailed Reports generated, and exports completed
High
In Progress
2.4
Conversion GoalsKey actions defined as conversion events: VS calculator completion, Detailed Report export, partner inquiry
High
In Progress
2.5
Privacy ComplianceGA4 data retention set to 26 months; IP anonymization enabled; opt-out path available
Critical
Complete
2.6
Monthly Analytics ReviewRegular review of GA4 data quality, anomalies, and actionable insights across VS storefronts
High
Complete
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3. Content — Plain Writing Act
7 items
The Plain Writing Act requires federal agencies and their partners to write in clear, accessible language. VacStak's mission depends on making USDA-APHIS and NAHMS vaccine economics research comprehensible to working livestock producers and veterinarians who are not policy specialists.
#
Requirement
Priority
Status
3.1
Reading LevelVS calculator descriptions and help text target 8th grade reading level; veterinary jargon is defined inline
Critical
In Progress
3.2
Veterinary Jargon GlossaryTechnical USDA-APHIS terms and epidemiological vocabulary explained in plain language tooltips or glossary
High
In Progress
3.3
SEO MetadataAll VS pages have unique, descriptive title tags and meta descriptions under 160 characters
High
Complete
3.4
Structured HeadingsLogical H1–H3 hierarchy on all VS pages; no skipped heading levels
Critical
Complete
3.5
Content Audit ScheduleQuarterly review of all VS calculator content for accuracy, clarity, and research currency against latest APHIS/NAHMS publications
High
In Progress
3.6
Veterinary AI DisclaimerClear disclaimer on every AI-assisted VS output: economic decision support only, not veterinary advice or a herd health plan
Critical
Complete
3.7
Source AttributionUSDA-APHIS or NAHMS source publication cited on all VS calculator pages that use research models
Critical
In Progress
🎨
4. Design & Brand — USWDS Alignment
4 items
The US Web Design System provides a shared visual language for federal digital services. VacStak draws on USWDS principles — while maintaining a distinct clinical navy/teal identity separate from AgrStak — to signal credibility and consistency to USDA-APHIS and veterinary institutional partners.
#
Requirement
Priority
Status
4.1
Mobile-First DesignAll VS storefronts designed and tested on mobile viewports first; responsive breakpoints implemented
Critical
Complete
4.2
Consistent Design SystemCommon nav, footer, color tokens, and typography across all 13 VS storefronts
High
In Progress
4.3
USWDS Component AlignmentKey interface components reviewed for alignment with USWDS design patterns for federal agricultural tools
High
Planned Q3 2026
4.4
Print StylesheetVS Detailed Report and calculator results pages print cleanly without navigation or extraneous UI elements
High
In Progress
⚙️
5. Development — 21st Century IDEA Act
6 items
The 21st Century Integrated Digital Experience Act mandates modern, secure, and user-centered federal digital experiences. VacStak's Vercel-hosted infrastructure meets the technical baseline requirements, shared with AgrStak.
#
Requirement
Priority
Status
5.1
HTTPS EnforcedAll VS pages served over HTTPS; HTTP connections automatically redirected to HTTPS
Critical
Complete
5.2
Page Load PerformanceCore Web Vitals targets met: LCP under 2.5s, FID under 100ms, CLS under 0.1 across VS storefronts
High
In Progress
5.3
API SecurityAll API keys stored as environment variables; no credentials exposed in client-side VS calculator code
Critical
Complete
5.4
Error HandlingUser-friendly error messages on all VS calculator pages; 404 and 500 error pages implemented
High
In Progress
5.5
Open Graph TagsOG title, description, and image tags on all VS storefronts for social sharing previews
High
Complete
5.6
Sitemap & robots.txtXML sitemap submitted to search engines; robots.txt configured for proper crawling of VS storefronts
High
In Progress
🔬
6. User Research & Testing
3 items
Federal digital services are expected to be designed with and for their users. VacStak conducts ongoing customer discovery with USDA-APHIS researchers, livestock producers, aquaculture operators, and extension agents.
#
Requirement
Priority
Status
6.1
USDA-APHIS Researcher TestingVS calculators validated with USDA-APHIS Veterinary Services researchers prior to institutional deployment
Critical
In Progress
6.2
Producer & Veterinarian Usability TestingRepresentative livestock producers and veterinarians test VS calculator usability before each major storefront launch
High
In Progress
6.3
Feedback MechanismIn-platform feedback button on every VS calculator page for users to report errors or inaccuracies in vaccine parameters
High
In Progress
📣
7. Social Media & SEO
2 items
#
Requirement
Priority
Status
7.1
Social Sharing TagsTwitter Card and Open Graph metadata on all public VS pages for consistent social previews
High
Complete
7.2
Canonical URLsCanonical link tags on all VS pages to prevent duplicate content indexing across storefronts
7. Social Media & SEO
2 items