Brazil: Federal Constitution art. 225 § 6, location of nuclear power plants defined by federal law
Brazil's 1988 Constitution requires that power plants operating with a nuclear reactor have their location defined in federal law before they can be installed, and makes all nuclear activity subject to National Congress approval within a Union monopoly over nuclear installations and ores. It designates no site itself.
- Category
- Laws, rules and executive directives
- Status
- In effect
- Instrument
- statute · Constituição da República Federativa do Brasil de 1988, art. 225, § 6º (read with art. 21, XXIII, a, and art. 49, XIV)
- Issued by
- Assembleia Nacional Constituinte (Federal Constitution of 1988)
- Jurisdiction
- Brazil
- Affects
- Siting
- Effective date
- Not recorded
- Expiry or completion
- None recorded
- Operative text
- STF: A Constituição e o Supremo, art. 225 (STF 'A Constituição e o Supremo' compilation, art. 225, read 2026-10-18)
- Record reviewed · next review
- 2026-10-18 · 2027-04-18 (dates our review of this record; not a statement of the measure's present legal effect)
Legal and geographic scope
Constitutional provision, recorded under the statute type: power plants that operate with a nuclear reactor must have their location defined in federal law, without which they may not be installed (art. 225, § 6). Related provisions read in the same official compilation: the Union is competent to explore nuclear services and installations of any nature and holds a state monopoly over research, mining, enrichment, reprocessing, industrialisation and trade of nuclear ores and derivatives, and all nuclear activity in national territory is admitted only for peaceful purposes and with the approval of the National Congress (art. 21, XXIII, a); the National Congress has exclusive competence to approve Executive initiatives concerning nuclear activities (art. 49, XIV). The provision does not itself designate any site. How it applies to research, test or non-power reactors is not addressed here.
Not approved or still pending
No federal law defining the location of any new nuclear power plant was reviewed, and none is recorded here. Pending constitutional amendment proposals on the nuclear monopoly or on state consent to plant siting were not verified. Whether a given SMR or microreactor needs a siting law is not established.
Dated lifecycle
- 1988 · actual · year · Enacted — The compilation identifies the text as the 1988 Federal Constitution (CF/1988); the promulgation day is not stated on the page read. (STF: A Constituição e o Supremo, art. 225)
Related instruments
Projects or designs named by the source
- None. Location in this jurisdiction does not make a project eligible for, or approved under, this measure.
Sources
- STF: A Constituição e o Supremo, art. 225 (government_primary, accessed 2026-10-18)
- STF: A Constituição e o Supremo, art. 21 (government_primary, accessed 2026-10-18)
- STF: A Constituição e o Supremo, art. 49 (government_primary, accessed 2026-10-18)