Tier 1 OCC Deployment Case Study: Philadelphia L&I Appeals Processing (Jan 2010–Dec 2018)

Title:Tier 1 OCC Deployment Case Study: Philadelphia L&I Appeals Processing (Jan 2010–Dec 2018) Authors:Kyle Espeleta Description:This record publishes a complete Tier 1 deployment of the Obligation Closure Constraint (OCC) on a regulatory appeals boundary: Philadelphia Department of Licenses & Inspections appeals processing. Using immutable raw datasets included in the archive and locked boundary definitions, the deployment computes the Tier 1 accounting series—arrivals, attempted closures, durable closures via stick rates at 30/90/180-day horizons, return-work via a defined reopen channel (court appeals), unresolved stock, tail age metrics, and a challenge-intensity proxy. Key findings: - Average monthly arrivals: ~178 appeals- Average monthly attempted closures: ~171 decisions- 90-day stick rate: 99.8% (court appeals extremely rare)- Durable clearance ratio (90-day rolling): 0.92- Unresolved stock growth: 202 → 1,983 cases over 9 years- 90th percentile unresolved age: 1,805 days- Regime diagnosis: “Busy but stuck” The combination of very high stick rates and sustained backlog growth indicates durable capacity lags demand. Decisions almost always stand, but the system cannot clear its queue. This record is intended as a reproducible case example of OCC instrumentation rather than a causal explanation of staffing, policy, or institutional intent. License:Creative Commons Attribution 4.0 International (CC BY 4.0) Keywords:operator closure constraint, appeals processing, licenses and inspections, queue dynamics, institutional capacity, durable clearance ratio, backlog analysis, Philadelphia, regulatory compliance Resource type:Dataset Related identifiers:IsSupplementedBy: <https://doi.org/10.5281/zenodo.18073749> Citation:Espeleta, K. (2025). Tier 1 OCC Deployment Case Study: Philadelphia L&I Appeals Processing (Jan 2010–Dec 2018). Zenodo. <https://doi.org/10.5281/zenodo.18076572>