Terminal Visitation Permit

Terminal Visitation Permit is the class of authorisation by which a resident of the Tower may approach a terminal aperture and witness the cessation of a catalogue entry at its terminal particularity. The permit is distinct from the Terminal Slip, which records the protocol, and from the Certificate of Manifest Visitation, which concerns manifest requisition rather than terminal observation. Issuance is reserved to the Bureau of Registry, pursuant to the Visitation of 634 and subsequent recensions of the Third Concordance.

Origins and Statutory Basis

The first Terminal Visitation Permit of record was struck on Floor 1192-Δ during the Long Recension, when the Division of Terminal Verifications determined that unstructured observation of terminal cessations was producing contradictory echo accounts. The Second Concordance, Clause 17, established that "no person shall stand at a terminal aperture without a seal of visitation, lest the Terminal Echo be counted twice." The Third Concordance, Annex 4, amended this to permit collective observation under a single permit where the parties shared a scriptorium. The Fifth Concordance disputed both, holding in Section 2 that "a permit issued to a collective is no permit, being dissolved at the moment of departure from the annex." Scholarly opinion remains divided; the Curatorial Spire favours the Third, the Bureau of Registry the Fifth.

Forms and Inscriptions

A Terminal Visitation Permit is inscribed upon a slip of grey vellum cut to the dimensions of the Standard Terminal Unit and sealed with the numeral of the issuing floor. The permit references the terminal aperture by its spiral marking and the catalogue entry by its sequestered index. Where the entry falls under the Grey Niche, the Visitation of 634 ruled that the contents were sequestered and could not be requisitioned by the Curatorial Spire, a restriction that the Manifest Theory Consortium has held applies equally to observation permits. A permit improperly removed from the Register invites audit by that Consortium.

"A Terminal Visitation Permit issued without a corresponding Terminal Slip is a leaf without a tree, and the wind of the stairwell shall take it."

— Clerk Omm of the Lower Spiral, Recension Commentary 3

Procedures of Issue

The Bureau of Registry requires, before issuance, a Certificate of Final Form as prerequisite to the related Certificate of Manifest Visitation, though the permit itself precedes manifestation. The Division of Terminal Verifications contributes the Terminal Certification founded upon Terminal Particularity, a governing law for Terminal Cataloguing. A Terminal Paradox arising during observation cannot be resolved without such certification. In the winter of the 884th spiral, a permit was issued on Floor 77-Ω to a clerk of the Auditory Permit Office who, holding a Class Δ permit, remained governed by that Office for sound generation; the resulting Echo was excluded from the record for want of an accompanying Vibration Permit.

Disputed Permits and the Register

The Permit Register of the Tower is the source of instruments that can be subject to Permit Forgery, and several forged Terminal Visitation Permits were discovered among the Permit Rubble of Floor 330-β. The Provisional Research Permit 4409, implemented through the Provisional Research Charter, has been cited as authorising terminal observation without the Bureau's seal; the Bureau of Registry rejected this in Circular 12, noting that provisional research does not override the Visitation of 634. The Oblique Access Permit and the Wanderer's Permit are explicitly excluded from terminal apertures by the Ninth Concordance, Section 9.

Visitors are reminded that the consumption of broth within twelve paces of a terminal aperture voids the permit and forfeits the associated Terminal Documentation.

Scholarly Disagreement

The question whether a Terminal Visitation Permit lapses at the cessation of the observed entry or at the observer's departure from the floor is unresolved. The Third Concordance holds the former; the Fifth Concordance the latter; the Seventh Concordance, Fragment 3, proposes that the permit never lapses but becomes the property of the aperture. The Manifest Theory Consortium has declined to audit this fragment, citing the Certificate of Final Form as outside its brief. The Ambient Phenomena Permit office has objected that terminal apertures emit ambient phenomena and thus fall under its sway, a claim the Bureau of Registry answered only with a seal and no commentary.