Editorial review 2026-09-12 · Jurisdiction: Sweden — Environmental Code chapter 12 section 6 as explained by Naturvårdsverket

A 12:6 consultation is not a plan samråd — and not a C-notification

Is a Swedish hall already cleared with nature because someone “had a samråd”, or because a dated Environmental Code chapter 12 section 6 notification actually sits at the right supervisory desk? Naturvårdsverket’s page on consultation when the natural environment may change, used here, says an activity or measure that may substantially alter the natural environment, and that is not already covered by a permit or notification duty under other Environmental Code provisions, shall be notified for consultation to the authority that exercises supervision under chapter 26. That authority is the county administrative board, the Swedish Forest Agency or the Inspector of Health and Environment for the Armed Forces (formerly Generalläkaren). Substantial alteration, on that page, includes damage to valuable natural or cultural environments or to biological diversity, and wasteful use of natural resources, energy and materials. The same agency’s supervision-process page records the complementary role: the provision exists so the supervisory authority receives information about planned measures and can order steps to limit harm, or prohibit the activity where that is necessary to protect the natural environment. Compensation rules then sit in chapter 31. Handbook 2001:6 and general advice NFS 2001:15, in force from 20 June 2001, remain the published interpretation. Naturvårdsverket says it is reviewing the handbook and the general advice, with that work planned to finish during 2026. Until a later paper replaces them, those 2001 texts stay the dated commentary. Chapter 12 section 6 itself says the notification shall be made in good time, at least six weeks before the activity starts, unless the supervisory authority accepts another clock. A bygglov, a förhandsbesked or a plan samråd does not replace that Environmental Code row. A C-notification under the environmentally hazardous-activity ordinance is a different clock, already owned on the C-notification page. Microsoft’s 16 November 2021 note names Gävle, Sandviken and Staffanstorp. EcoDataCenter names Falun. Google names Horndal. atNorth’s 23 February 2026 SWE04 note names Sollefteå. evroc’s 3 February 2025 note names Arlandastad. None of those pages is a 12:6 notification, a six-week start clock or a prohibition. The plan-samråd page and the C-notification page already own neighbouring papers. This page only asks which published nature-consultation object the hall file is sitting on. This is orientation, not counsel.

An industrial interior with equipment carts and overhead pipework.
Photo Lawrence Krowdeed on Unsplash

General orientation. Assess the specific project separately. Applies to: Readers placing a we-consulted-nature or samråd-done sentence on a Swedish hall file as if one Swedish word covered every consultation.

Reading order

Seat the Environmental Code row before any samråd slogan. Chapter 12 section 6 is a complementary notification. It applies where the measure may substantially alter the natural environment and is not already caught by another Environmental Code permit or notification. Write the desk, the date and the six-week clock on one line before you say nature was consulted.

Then keep the three supervisory desks on their own row. County administrative board, Forest Agency and the Armed Forces inspector are different inboxes. A municipal building committee is not that inbox. A plan samråd under Planning and Building Act chapter 5 is a different window, already owned on the samråd-versus-granskning page.

Then keep the 2001 handbook on its own row. NFS 2001:15 still applies. Naturvårdsverket is reviewing it during 2026. A 2026 review plan is not yet a replacement paper. Do not invent a new six-week exception from a slide that says the handbook is old.

Then keep named project rows as geography. Microsoft, EcoDataCenter Falun, Google Horndal, SWE04 Sollefteå and evroc Arlandastad stay operator papers. This register does not publish a 12:6 notification for those cadastral units.

  • 12:6 is complementary. Another Environmental Code duty can already own the measure.
  • The inbox is länsstyrelsen, Skogsstyrelsen or the Armed Forces inspector.
  • The statutory start wait is at least six weeks unless the desk accepts another clock.
  • Plan samråd and C-notification are different papers.

What a 12:6 notification and a six-week clock actually measure

The notification measures information to the supervisory authority. It is not a vote and not a reserved construction right. Naturvårdsverket says the desk can order measures or, where necessary to protect the natural environment, prohibit the activity.

The six-week clock measures a statutory earliest start after a timely notification, unless the desk accepts another clock. A late notification does not rewind earthworks that already started. A plan-samråd week is a different clock.

The complementary test measures whether another Environmental Code permit or notification already covers the measure. Water operations, environmentally hazardous activity and a Natura 2000 permit are later rows. If those papers already apply, this page does not invent a second start clock.

A bygglov measures a Planning and Building Act object. County-board information sheets used beside this register record that the two laws run in parallel. A granted lov is not a 12:6 close-out.

What named primary sources show

Naturvårdsverket’s 12:6 page remains the dated national commentary for the complementary duty, the three desks and the meaning of substantial alteration. The supervision-process page remains the dated commentary for orders, prohibition and chapter 31 compensation. NFS 2001:15, from 20 June 2001, remains the dated general advice, with a 2026 review still unfinished in the pages used here.

Environmental Code 1998:808 chapter 12 section 6 remains the statutory six-week paper. The C-notification page and the plan-samråd page remain neighbouring letterheads. Named operator rows remain geography.

No cited source here publishes a project-specific 12:6 notification, a six-week start decision or a reserved hall megawatt created by a we-consulted slide.

A matrix instead of one samråd slogan

Draw one page with object rows and evidence columns. 12:6 notification, six-week clock, plan samråd, C-notification, Natura 2000 permit and a named campus town are different columns. Empty cells stay empty.

Do not invent a hall nature week from the 2001 handbook. Those remain statutory minima and complementary-duty facts from dated Naturvårdsverket pages.

ObjectWhat a source can showWhat this page will not invent
12:6 notificationNV: complementary duty if nature may change substantiallyA plan samråd or a bygglov
Six-week clockMB ch. 12 § 6: at least six weeks unless the desk accepts another clockA hall earthworks week
Supervisory deskLänsstyrelsen, Skogsstyrelsen or Armed Forces inspectorThe building committee as that inbox
2001 handbookNFS 2001:15 still in force; NV review planned during 2026A replacement paper that does not yet exist
Named campus townMicrosoft 16 Nov 2021; Falun; Horndal; SWE04 23 Feb 2026; Arlandastad 3 Feb 2025A 12:6 file or reserved MW

Common misreads

The first misread is to collapse every Swedish samråd into one inbox. Plan samråd, 12:6 consultation and a C-notification are different papers. The second is to treat a granted bygglov as a 12:6 close-out. The laws run in parallel. The third is to treat the 2026 handbook review as if NFS 2001:15 had already been repealed.

The fourth is to treat a named campus town as proof that nature was already consulted. The fifth is to start earthworks on a we-notified slide that has no date. The sixth is to invent a hall nature week or a reserved megawatt. The seventh is to collapse this page into the Natura 2000 page or the C-notification page.

What to ask next

Ask which desk received the notification, which date it carries, and whether another Environmental Code duty already owns the measure. Ask whether a six-week slide has been pasted onto a plan samråd.

Then open the plan-samråd page, the C-notification page, the Natura 2000 page and the water-operations page. If the operator will not name the desk and the date, record the gap. Do not fill it from a we-consulted slide. This page is not legal advice.

  1. Is the paper a 12:6 notification, a plan samråd or a C-notification?
  2. Which of the three supervisory desks received it, and on which date?
  3. Has another Environmental Code duty already covered the measure?
  4. Has a six-week slide been pasted onto a plan window?
  5. Has a campus town been treated as a 12:6 file?

What this does and does not prove

This page proves that Naturvårdsverket already publishes chapter 12 section 6 as a complementary nature-consultation duty with a six-week clock and three supervisory desks — and that those facts are not a reserved hall megawatt.

It does not prove that a named Swedish hall holds a 12:6 file. It does not invent a nature week for Horndal or Arlandastad. It does not treat a campus press note as a notification.

Empty cells stay empty. Until a later primary source names the desk, the date and the measure, the 12:6 clock stays a method, not a census. DataCenterSweden records the method.

Sources

  1. Environmental Code (1998:808) Sveriges riksdag (publication date not stated). Checked 2026-09-12.
  2. Naturvårdsverket — Consultation when the natural environment may change (12 ch. 6 §) Naturvårdsverket (publication date not stated). Checked 2026-09-12.
  3. Naturvårdsverket NFS 2001:15 — General advice on notification for consultation under Environmental Code chapter 12 section 6 Naturvårdsverket, 2001-06-20. Checked 2026-09-12.
  4. Naturvårdsverket — Supervision process and chapter 12 section 6 consultation Naturvårdsverket (publication date not stated). Checked 2026-09-12.
  5. Environmental assessment and permits Naturvårdsverket, 2026-01-01. Checked 2026-09-10.
  6. Microsoft opens its sustainable datacenter region in Sweden Microsoft, 2021-11-16. Checked 2026-09-10.
  7. EcoDataCenter 1, Falun EcoDataCenter, 2026-01-01. Checked 2026-09-10.
  8. Horndal, Sweden – Google Data Center Location Google Data Centers, 2026-09-01. Checked 2026-09-11.
  9. New 300MW mega site in Sollefteå, Sweden atNorth, 2026-02-23. Checked 2026-09-11.
  10. evroc finalizes land purchase in Arlandastad, Stockholm evroc, 2025-02-03. Checked 2026-09-10.

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