PTEN
Structured reading of documents, requirement matrices and evidence traceability, checked by the responsible engineer on every deliverable.
The problem
A permitting process accumulates permits, agency opinions, official letters, studies and versions of studies. The risk usually sits in the item nobody reread: the condition whose deadline runs from the date of issue, the requirement repeated in another document, the parameter that changed between two versions.
We use artificial intelligence as an internal tool of technical work: it reads everything, structures it and points to the source; the engineer checks, interprets and signs. We do not sell software, and we deliver nothing that has not been read by the person technically responsible.
Who it is for
Demonstration
Article 4 of Brazil's Forest Code (Law 12,651/2012) read and structured: each row points to its source provision and to the data the spatial analysis needs. It is the same rule applied in the map of the GIS demonstration.
Demonstration · synthetic documents
Step 1 of 5
Documents as they arrive: license, technical opinion, request for information, terms of reference. Here, synthetic documents written for the demonstration.
Step 2 of 5
In each document, the obligation and the deadline are identified in the text and classified by theme, with the source item noted.
Step 3 of 5
What was identified becomes a row of the matrix: the requirement, where it came from and when it is due. What the text does not say stays blank.
Step 4 of 5
Each row points to the document, the item and the source passage. Anyone can check the matrix against the source.
Step 5 of 5
The engineer in charge reviews it row by row and sets who answers for each obligation. Only then does the matrix become a deliverable.
Operating licenseSynthetic document
Conditions
Maintain self-monitoring of liquid effluents and submit an annual report to the environmental agency, by March 31 of each year.
EffluentsCarry out environmental noise monitoring at the boundaries of the facility, every six months.
NoiseSubmit, within 120 days of the issue of this license, the updated solid waste management plan.
WasteTechnical opinionSynthetic document
Recommendations
Carry out the riparian strip restoration project along the watercourse, within 180 days of issue.
FloraDraft · awaiting reviewReviewed by the engineer in charge
| Requirement | Source | Deadline | Owner | Status |
|---|---|---|---|---|
Annual effluent self-monitoring reportsubmit an annual report to the environmental agency · by March 31 of each year | Operating license, item 3 | Annual, by March 31 | To be set at reviewOperations | DraftReviewed |
Environmental noise monitoringCarry out environmental noise monitoring · every six months | Operating license, item 4 | Every six months | To be set at reviewEnvironment | DraftReviewed |
Updated solid waste management planthe updated solid waste management plan · within 120 days of the issue of this license | Operating license, item 5 | 120 days from issue | To be set at reviewEnvironment | DraftReviewed |
Execution of the riparian strip restoration projectCarry out the riparian strip restoration project · within 180 days of issue | Technical opinion, item 7 | 180 days from issue | To be set at reviewEnvironment · contractor | DraftReviewed |
4 requirements · 2 source documents · 2 deadlines counted from issue · all with the source stated
Artificial intelligence applied to technical analysis, with traceability and professional validation.
Documents written for this demonstration. They do not reproduce any real case, agency or project.
How the work moves
01
The document as it is: a permit PDF, an agency opinion, terms of reference, a regulation.
02
Items separated and classified, each with its document, page and source provision.
03
The engineer checks against the source and adds the reading the text alone does not give.
04
A matrix, comparison or dossier, as a spreadsheet and a report, ready for the routine.
| Provision | Feature | Parameter | Strip or criterion | Data needed for the map |
|---|---|---|---|---|
| Art. 4, I, a | Natural perennial or intermittent watercourse | Less than 10 m wide | 30 m on each bank | Hydrography and the edge of the regular channel |
| Art. 4, I, b | Watercourse | 10 to 50 m wide | 50 m on each bank | Hydrography and channel width |
| Art. 4, I, c | Watercourse | 50 to 200 m wide | 100 m on each bank | Hydrography and channel width |
| Art. 4, I, d | Watercourse | 200 to 600 m wide | 200 m on each bank | Hydrography and channel width |
| Art. 4, I, e | Watercourse | More than 600 m wide | 500 m on each bank | Hydrography and channel width |
| Art. 4, II, a | Natural lake or pond in a rural zone | Surface of up to 20 ha, or larger | 50 m, or 100 m | Water surface and zoning |
| Art. 4, II, b | Natural lake or pond in an urban zone | — | 30 m | Water surface and urban perimeter |
| Art. 4, IV | Perennial spring | Any topographic position | 50 m radius | Spring locations surveyed in the field |
| Art. 4, V | Hillside | Slope greater than 45° | The whole hillside or part of it | Elevation model and slope map |
What the review adds
The text gives the strip; applying it depends on the case. In consolidated urban areas, municipal law may set riparian strips different from those in item I (paragraph 10, added by Law 14,285/2021). Channel width and spring locations come from a survey, not from the map. And some cases in the article are not in this table: reservoirs, palm swamps (veredas), hilltops.
Source: Law No. 12,651 of May 25, 2012, consolidated text on the Brazilian Presidency's legislation portal (Planalto), checked on October 8, 2026.
Scope and deliverables
Six services, each with a deliverable that goes into the project's routine.
Permits, agency opinions, notices and terms of reference converted into items, each with its source.
Deliverable
Spreadsheet of items with document, page and provision.
Conditions and requirements from every permit in a single matrix, with deadline, owner and expected evidence.
Deliverable
Permit-conditions matrix and obligations calendar.
Legal and regulatory requirements applicable to the activity, classified by subject, type of obligation and frequency.
Deliverable
Requirements matrix, with the source provision.
What changed between two versions of a study, a draft or an agency opinion.
Deliverable
Difference report, flagging what changes an obligation or a risk.
Each piece of compliance evidence linked to the obligation it proves.
Deliverable
Compliance dossier, ready for an audit, a renewal or a transaction.
Requirement, contracted scope, supplier proposal and field data read side by side.
Deliverable
Schedule of gaps and pending items by owner.
How the work is organized
01
What will be decided with the result and which documents count.
02
The matrix model: fields, classification and source rule, before processing.
03
AI-assisted extraction and the engineer's check against the document.
04
A living matrix: when a new document comes in, the difference shows.
Proven experience
An in-house system for reading project documents: it answers with the source and the excerpt, builds the matrix of requirements and permit conditions, and flags conflicting deadlines and evidence gaps across documents. Whatever it writes comes out as a draft; it does not sign, file or send.
The method was applied in 2026 to monitoring reports and to matrices for meeting permit conditions.
This page's demonstration: a matrix extracted from public legal text and checked against the source.
Technical responsibility stays where it has always been: with the engineer, under an ART when the service requires one.
Experience from 2009 to 2023 belongs to the responsible engineer and is recorded in ARTs (technical responsibility records) filed with CREA-MG; the 2026 work was contracted by H·MARIZ. Clients are not named. The list of ARTs is available on request.
Next
Related portfolio
A cross-cutting capability: it applies to both sectors and has no presentation of its own.
Contact
Send the permits. The first matrix shows the size of the problem.
Henrique Marizhenrique@hmariz.comWhatsApp (31) 99791-8003Belo Horizonte, Minas Gerais
