Longlead Learn

Learn the signals behind the work.

Plain-English guides to the shielding and secure-facility requirements, and the federal buying mechanics, that create specialist demand before a bid names it.

Painterly cutaway of a secure facility with layered shielding and attenuated radio-frequency waves
ShieldingReviewed July 2026

What Is a SCIF? ICD 705 Requirements, RF Shielding, and TEMPEST Explained

A SCIF is an accredited area for handling Sensitive Compartmented Information. ICD 705 establishes the policy; technical specifications turn the threat, location, and mission into facility requirements.

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Painterly early-project planning table linking public records, a prime contractor, and a specialist subcontractor
GovCon BDReviewed July 2026

How to Win Government Contracts as a Subcontractor: Finding Work Before It's Bid

Subcontractors sell to prime contractors, not directly to the agency. The strongest position is often built before the formal bid, when a prime is shaping its team, schedule, design, and risk plan.

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Illustration of an MRI scanner room under construction with exposed copper shielding panels in the ceiling and wall
ShieldingReviewed August 2026

MRI RF Shielding Requirements: What Imaging Suites Actually Need

An MRI room is shielded to keep outside radiofrequency noise away from the scanner, not to contain anything inside. The enclosure wraps every surface, and every service entering the room passes through it on the shield vendor's terms.

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Illustration of a healthcare facility under construction, with exposed structure and two workers reviewing plans
ShieldingReviewed August 2026

Radiation Therapy Vault Construction: Shielding, Review, and Sequencing

A linear accelerator vault is one of the heaviest rooms in healthcare construction. A registered radiological physicist prescribes the barriers, state programs can require the shielding plan before construction starts, and the vault's mass constrains the building around it.

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Illustration of a technician operating a heavy shielded vault door in a secure corridor with copper wall panels
ShieldingReviewed August 2026

TEMPEST vs ICD 705: What Each One Actually Governs

ICD 705 makes every SCIF meet uniform physical and technical security requirements. TEMPEST is a separate emissions-security discipline, applied per project only when a Certified TEMPEST Technical Authority determines countermeasures are needed.

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Illustration of a hardened federal building facade with recessed windows and a heavy plate door at sunset
ShieldingReviewed August 2026

Blast Hardening in Federal Construction: Who Requires What

Blast hardening on federal projects is standards-driven. DoD construction answers to UFC 4-010-01 and its companion criteria, civilian federal facilities to the Interagency Security Committee, and both turn threat assumptions into concrete scope.

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Illustration of a preconstruction team reviewing floor plans while contractors wait outside the door
ShieldingReviewed August 2026

When GCs Buy Out Shielding Scope: How to Get in Before the Bid

A shielding subcontract is bought commercially by the contractor holding the scope above you, not awarded by the agency. That decision follows a public paper trail that starts with budgets and notices, months before any bid names your scope.

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