Section 10 of new-sector-compliance-targets.md rewritten with live-pulled,
verified results for the 'which verticals have 500k+ email leads' question:
- USPTO trademarks (#1) DISPROVEN: owner email is not in any free bulk file
(Daily XML DTD + Case Files research dataset have no email column) and the
TSDR/ODP API is now ID.me-auth-walled (2026-06-18). Demoted to needs-append.
- FMCSA Company Census is the real 500k+ winner: 2.93M rows w/ email_address,
1.66M active+email (1.59M distinct), 636,278 overdue MCS-150. 92% verify.
- Connecticut SOS (#3) is the email-native state flagship: 787k w/ business
email, 439,763 active+email, 97,466 overdue annual reports. 96% verify.
(No other state business registry on Socrata exposes a business email.)
New scripts/build_registry_outreach_lists.py: one extensible engine with
due_date and staleness clock types; CT + FMCSA adapters; emits overdue,
due_soon, active_emailable CSVs compatible with verify_csv_emails.py.
