Title I of the NSR-10 sets the minimum scope of technical supervision: approving the quality control program and the laboratory, controlling the materials, approving the construction procedures, rejecting whatever does not match the drawings and keeping a written record of everything (I.2.3.1). It covers the structure and the nonstructural elements of chapter A.9 (I.2.1.2).
The written record
It includes the specifications, the quality control program, the photo record, the test results, all correspondence with the contractor and the designers, and a final certificate that the structure was built according to the code, also signed by the contractor and the permit holder (I.2.2.1). The supervisor must keep it for at least five years (I.2.2.2).
What the supervisor can require
The supervisor can ask the designers to complete or correct drawings, ask the geotechnical engineer for recommendations in unforeseen situations, warn in writing about deficiencies, reject parts of the structure and, if the contractor does not comply, recommend that the urban control authority suspend the works (I.2.3.1).
At the end
The supervisor hands the as-built drawings and the record to the authority, the owner and the contractor (I.2.2.2); in a condominium, a copy goes to the owners' association. Under Law 1796, that work ends with the Certificado Técnico de Ocupación. See our technical supervision service.
Source: NSR-10, Title I, chapter I.2.
Frequently asked questions
What records does technical supervision leave?
A written record with the specifications, the quality control program, photographs, tests, correspondence and a final certificate, plus the as-built drawings (NSR-10, I.2.2).
How long must the supervisor keep the record?
At least five years from the end of construction (I.2.2.2).
