Out-of-home advertising spend in the United States reached $9.3 billion in 2025, according to the Out of Home Advertising Association of America (OAAA), with programmatic digital OOH growing at 22 percent year-over-year. For OOH advertising companies—whether independent planning boutiques or integrated media agencies—the operational demands behind each campaign are substantial: artwork specifications vary by operator and format, permit applications must be tracked across municipalities, and billing reconciliation spans dozens of vendor invoices. A virtual assistant specializing in OOH operations handles these administrative layers with precision, protecting campaign timelines and client budgets.
Artwork Specification Management
Every OOH placement has specific artwork requirements: pixel dimensions, file format (PDF, JPEG, or vendor-specific formats for programmatic screens), resolution, bleed marks, safe zone specifications, and color profile requirements. Billboard operators, transit authorities, and digital OOH networks each publish their own spec sheets, and these specifications vary enough that a design submitted for one format will not work for another without modification.
A VA manages the artwork specs workflow for every campaign. The VA collects current spec sheets from each operator (Lamar, Clear Channel, Outfront, and local operators), organizes them in a searchable Notion database indexed by format and operator, and provides the creative team with the correct spec document for each placement in the campaign. When operators update their specifications, the VA updates the database and notifies the production team. The VA also reviews submitted artwork against operator spec sheets before submission, flagging any non-compliant files before they cause production delays. OAAA data indicates that artwork non-compliance is the leading cause of production delays in OOH campaigns.
Permit Application Tracking
Static bulletin and wallscape placements often require municipal permits, and permit timelines vary widely by jurisdiction—from 48 hours in some municipalities to 90 days or more in others. Missing a permit deadline can force a campaign start date to slip by weeks. For companies managing campaigns in multiple markets simultaneously, tracking permit status across dozens of jurisdictions is a full-time administrative task.
A VA maintains a permit tracker in Airtable, logging each placement requiring a permit, the submitting municipality, application submission date, expected approval timeline, and current status. The VA follows up with municipal offices at defined intervals, escalates stalled applications to the account manager, and confirms approval receipt before the production team proceeds with installation. The VA also archives permit documentation for the compliance record, which operators and clients may request in the event of a lease dispute or municipal audit.
Vendor Billing Reconciliation
OOH campaign billing is notoriously complex. Operator invoices must be reconciled against media orders, posting confirmations, and affidavit-of-performance documentation. When a billboard panel is obscured by construction, a transit shelter display is vandalized, or a digital unit goes dark, operators are contractually obligated to provide make-goods or billing adjustments—but these adjustments do not always appear automatically on invoices.
A VA performs billing reconciliation for each campaign cycle. The VA collects operator invoices, cross-references them against the signed media orders and posting reports, identifies discrepancies, and submits billing dispute documentation to operators for correction. The VA also tracks make-good units—confirming they have been scheduled, posted, and reflected correctly in the revised billing. According to OAAA industry research, proactive billing reconciliation recovers an average of 3 to 5 percent of campaign spend in credits and adjustments that would otherwise be forfeited.
Campaign Performance Reporting and Posting Confirmation
After each campaign, a VA compiles posting confirmation documentation (photos and posting affidavits from operators), organizes them by market and unit, and prepares a client-facing campaign delivery report. The VA also tracks audience impression delivery against planned estimates using operator-provided traffic data, flagging any under-delivery that triggers make-good obligations. OOH companies ready to professionalize their campaign operations can hire experienced OOH admin VAs through Stealth Agents.
Sources
- Out of Home Advertising Association of America (OAAA). OOH Revenue and Industry Report 2025. oaaa.org
- Lamar Advertising. Artwork Production Specifications and Submission Guidelines. lamar.com
- Clear Channel Outdoor. Digital and Static OOH Specifications. clearchannel.com
- Airtable. Media Operations Workflow Use Cases 2025. airtable.com