(Hotlinks • A–Z within each category • CAC/PIV noted where applicable)
Identity & Access · Defense & Military Ops · Veterans Affairs · Healthcare & Medical · Finance, Taxes & Retirement · Business, Grants & Procurement · Law, Justice & Courts · Travel, Immigration & Passports · Education & Training · Science, Environment & Regulatory · Agriculture & Commerce · Energy & Utilities · Transportation · Communications & Spectrum · Intellectual Property · Housing & Community · Postal & Delivery · Public Services & Recreation · Research & Data · Emergency & Disaster · Employment & HR · Security Clearances & Background · Census & Surveys
Identity & Access
- ID Card Office Online (DMDC IDCO)
- ID.me (used by some agencies)
- Login.gov (federal SSO)
- Selective Service — Verify/Manage
Defense & Military Ops
- Air Force: Air Force Portal (CAC), Air University Student, e-Publishing
- Army: AKO (retiree), ALMS, GCSS-Army, HRC Self-Service, IPPS-A, MEDPROS
- Coast Guard: Direct Access, e-Learning
- DoD: DCS (conference.apps.mil), DISS, DTS, DoD SAFE, MilConnect (DEERS), MyPay (DFAS), ServiceNow/AESD (Army IT)
- Marine Corps: Marine Online (MOL), TECOM, MCCS
- Navy: BOL (BUPERS Online), NEL, NSIPS
- Space Force: USSF Portal (CAC)
- Combatant Commands (public hubs): AFRICOM, CENTCOM, EUCOM, INDOPACOM, NORTHCOM, SOUTHCOM, STRATCOM, TRANSCOM, SOCOM, USCYBERCOM
Also see TRICARE Online and MHS GENESIS Patient Portal under Healthcare.
Veterans Affairs
Healthcare & Medical
- Defense/VA: MHS GENESIS Patient Portal, TRICARE Online
- HHS/Medicare: Medicare.gov Account, NPPES (NPI)
- HRSA: EHBs (Electronic Handbooks), NPDB
- CDC/NIH: CDC SAMS, NIH eRA Commons
- Public: HealthCare.gov
Finance, Taxes & Retirement
- IRS: Online Account (Individuals), Business Tax Account, Tax Pro Account, FIRE, Where’s My Refund?
- Treasury: TreasuryDirect (I Bonds/T-Bills), EFTPS, Pay.gov, FinCEN BOI E-Filing, FinCEN BSA E-Filing
- Retirement: TSP — Thrift Savings Plan
- DFAS: MyPay
Business, Grants & Procurement
- Awards & Entities: SAM.gov
- Grantmaking: Grants.gov, NSF Research.gov, NIH ASSIST (via eRA), NASA NSPIRES, NOAA Grants Online, DOE eXCHANGE (EERE), DOE Infrastructure eXCHANGE
- Payments/Draws: HHS Payment Management System (PMS)
- SBA: SBA Certify
- GSA: eOffer/eMod, eBuy, GSA Advantage
- DoD Contracts (PIEE/WAWF/eDA): PIEE
- Subawards: FSRS — Federal Subaward Reporting System
- Export Controls / Trade: BIS SNAP-R (Export Licensing), State DDTC DECCS (ITAR), ITA ACCESS (Trade Cases)
Law, Justice & Courts
- PACER / NextGen CM/ECF
- FERC eFiling / eService
- Regulations.gov (e-Rulemaking)
- FOIA.gov (agency portals hub)
Travel, Immigration & Passports
- CBP/Travel: ACE (Trade), ESTA (Visa Waiver), Trusted Traveler (Global Entry/NEXUS/SENTRI/FAST), DHS TRIP (Redress)
- State: CEAC (Immigrant/Nonimmigrant), MyTravelGov, Passport Status
- USCIS: myUSCIS / Online Account, File Online (how-to)
- TSA: PreCheck / UES
Education & Training
- Federal Student Aid: FSA ID / StudentAid.gov
- DoD/Joint: JKO, ALMS, Navy eLearning, Air University
Science, Environment & Regulatory
- EPA: CDX (Central Data Exchange)
- FDA: Industry Systems (FURLS/OAA)
- NOAA: Fisheries Permits Portal
- USDA APHIS: eFile
- CPSC: Business Portal
- DOI/FWS: ePermits (legacy: https://epermits.fws.gov/)
- BEA: eFile (FDI & BE-45/BE-13 etc.)
- OSHA: Injury Tracking (ITA) Portal
- CFPB: HMDA Platform (FFIEC)
- FFIEC: CDR — Call Report
Agriculture & Commerce
- USDA: Farmers.gov Account, eAuthentication
- Commerce/ITA: ACCESS (trade cases)
- TTB: Permits Online
Energy & Utilities
- DOE: EERE eXCHANGE, Infrastructure eXCHANGE
- ENERGY STAR: Portfolio Manager
Transportation
- DOT FMCSA: Carrier Portal, Drug & Alcohol Clearinghouse
- FAA: DroneZone, IACRA, MedXPress
- NHTSA: Manufacturer Portal
- TRANSCOM: Single Mobility System (SMS), MilMove / DPS Household Goods
Communications & Spectrum
- FCC: CORES (FRN), ULS
- **Search.gov Admin (GSA)](https://search.usa.gov/signup)
Intellectual Property
- USPTO: MyUSPTO / Patent Center, Trademarks Login Hub
- Copyright Office: eCO
Housing & Community
- HUD: Secure Systems, FHA Connection
- Ginnie Mae: Enterprise Portal (GMEP)
Postal & Delivery
- USPS (consumer): USPS.com Account, Informed Delivery
- USPS (business): Business Customer Gateway
Public Services & Recreation
- Benefits.gov: Benefits Directory
- Recreation.gov: Sign in / Sign up
- Volunteer.gov: Account
Research & Data
- USAspending: Spending Explorer
- USITC: EDIS (E-Docket), DataWeb
- DTIC: DoD Technical Info (public)
- **ScienceBase (USGS)](https://www.sciencebase.gov/catalog/)
Emergency & Disaster
- DisasterAssistance.gov: Apply/Manage
- **FEMA Grants Portal (PA)](https://grantee.fema.gov/)
- **FEMA SID (training identity)](https://cdp.dhs.gov/femasid)
Employment & HR
- USAJOBS (OPM): Applicant Profile
- OPM Services Online: Retirees/Annuitants
- **FLAG (DOL Foreign Labor)](https://flag.dol.gov/)
- E-Verify / myE-Verify: Employers · Workers
Security Clearances & Background
- DCSA eApp / Clearance (public landing): eApp
- Visit Requests / DISS: DISS
- CAC Certificates: Self-Service (PKI)
Census & Surveys
- Census Bureau: Respondent Portal
- BLS: Internet Data Collection Facility (IDCF)
Notes & usage tips
- CAC/PIV: Items labeled (CAC) or DoD portals require a Common Access Card or PIV; some are only accessible on .mil networks.
- SSO: Many portals will route you through Login.gov or ID.me—that’s normal.
- Searchability: This structure is designed for category filtering and A–Z lookup. Drop it into WordPress and add a search bar; users will find the precise door by function and by name.