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Tool Public Revenue · RJ STATE

Ecological ICMS Simulator.

In Rio de Janeiro state, 2.5% of the municipal share of ICMS is distributed by environmental criteria. This tool estimates a municipality's position in the IFCA from three sub-indices: Protected Areas (UCs), Water Resources, and Basic Sanitation.

simulate

Environmental indicators of the municipality.

Fill in the three blocks with official data from the Rio de Janeiro municipality. The simulator combines the sub-indices with the weights set by State Decree 41.844/2009 and returns an estimate of the IFCA, the tier, and the implication on the transfer.

Part 1 · Protected Areas (UCs) weight 45%

Sum all UCs (federal, state, and municipal) within the boundaries of the municipality.

Official territorial area of the municipality, according to the IBGE registry.

Strict Protection (Parks, Stations, Reserves) carries a higher factor than Sustainable Use (APAs, RDS, RPPNs).

Part 2 · Water Resources weight 30%

Assess based on the IQA (Water Quality Index) published by INEA for the main water bodies of the municipality.

Part 3 · Basic Sanitation weight 25%

Percentage of the population served by sewage collection networks. Source: SNIS.

Percentage of collected sewage that receives treatment before discharge. Source: SNIS.

Selective solid waste collection coverage. Source: SNIS / Municipal Waste Plan.

Fill in the indicators and click estimate to see the result.
methodology

The three official sub-indices.

The IFCA is the weighted average of three environmental sub-indices. Each sub-index has a weight fixed by the regulatory decree, and the final result is converted into a municipal ranking by CEPERJ.

Sub-index Weight What it measures
UCs (ICA-UC) 45% Area of UCs in the municipality weighted by category (Strict Protection counts more than Sustainable Use).
Water (ICA-RH) 30% Quality of water sources and management of water resources, including the existence of a municipal plan.
Sanitation (ICA-SB) 25% Coverage of sewage collection, effluent treatment, and selective solid waste collection.

The weights come from State Decree 41.844/2009, which regulated Law 5.100/2007. The official calculation is performed annually by CEPERJ based on consolidated data from INEA, IBGE, SNIS, and ANA.

sources

Filling in with precision.

Each simulator field has a primary official source. Cross-checking the databases reduces error and brings the estimate closer to the calculation published by CEPERJ.

  • INEA RJ, data on state-level UCs and water quality monitoring of the main water bodies of Rio de Janeiro state.
  • SNUC (ICBio), official registry of federal UCs, with categories, area, and management plan.
  • IBGE, territorial area and population estimate of municipalities, with historical series and digital mesh.
  • SNIS, National Sanitation Information System, with sewage collection, treatment, and selective waste collection indices by municipality.
  • ANA, National Water Agency, with data on river basins, water permits, and water body classification.
  • CEPERJ, official IFCA calculation and annual municipal ranking, with consolidated index and percentage of transfer per municipality.
CEPERJ official ranking → INEA RJ → SNIS →
limitations

What this simulator does not say.

This simulator is a pedagogical estimate. It combines the three sub-indices with the official weights (45% / 30% / 25%) and returns an approximate IFCA, but the official calculation published by CEPERJ involves detailed formulas inside each sub-index, with normalization against the state average, weighting by UC category, and quality factors that change from year to year.

Small differences in UC category or in water source quality can significantly change the result. A municipality with the same UC area may score much higher if the predominant category is Strict Protection rather than Sustainable Use. For this reason, the screen above uses a single factor per category; the official calculation performs a weighting by SNUC category.

For real fiscal and environmental decisions, always consult the official ranking published by CEPERJ for the current fiscal year. The tool serves for internal diagnosis and prioritization of public environmental policies, never as the sole basis for budget forecasting of the actual transfer.

applied reading

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