AERB Licensing for a Cath Lab: What the Process Actually Involves

Everything a hospital board discusses about a new cath lab — the imaging platform, the caseload, the interventional cardiologist it will attract — sits downstream of one question nobody raises at board level: is the room licensed to emit ionising radiation?

Until the Atomic Energy Regulatory Board says yes, in writing, for that specific room and that specific equipment, it is not. A cath lab that is structurally complete, fully installed and clinically staffed but unlicensed is not an asset — it is carrying cost with a cardiologist standing next to it. AERB licensing is not difficult. It is sequential, and the sequence is unforgiving. This guide walks the pathway in order: what each stage requires, who owns it, and where the months actually disappear.

Before you plan against anything here: verify. AERB revises its safety codes, procedural requirements, forms and fee schedules from time to time, and requirements differ by equipment class and installation type. This article describes the structure of the process so you can programme around it. It is not a substitute for the Atomic Energy Regulatory Board’s own current published safety codes, guidelines and eLORA procedural documentation, which is what your project must actually comply with. Confirm every specific requirement — forms, fees, timelines, qualification criteria — against AERB’s own current publications and the eLORA portal at the time you apply, and involve your imaging OEM’s regulatory desk early.

What AERB Regulates, and Why a Cath Lab Falls Under It

The Atomic Energy Regulatory Board is India’s national radiation safety regulator. Its authority over your hospital comes from the country’s atomic energy legislation and the radiation protection rules made under it. In practical terms, AERB decides whether a radiation installation may exist, where it may be located, what it must be shielded to, who is responsible for safety inside it, and whether it may continue operating.

A cath lab is squarely inside that remit because fluoroscopy is continuous ionising radiation delivered close to people, for extended periods, by staff who stand in the room while it happens. That last point distinguishes interventional work from ordinary diagnostic radiography: in a standard X-ray room exposures are brief and the operator steps behind a barrier, while in a cath lab an operator may stand at the table for forty minutes of screening time per case, several cases a day, for a career.

The radiation problem is therefore not primarily the useful beam — that is intercepted by the flat-panel detector above the patient. It is scatter off the patient, in every direction, at every gantry angle, accumulating over long fluoroscopy times. Because the C-arm sweeps a wide range of projections there is no single primary-barrier wall; every barrier is assessed against scatter, and everyone around the room — operator, scrub nurse, anaesthetist, the ward patient on the other side of the wall, the visitor in the corridor — is somebody AERB’s dose framework is written to protect.

Those protections resolve to statutory dose limits: broadly, 20 mSv per year for occupationally exposed workers averaged over a defined five-year period, and 1 mSv per year for members of the public. Every shielding calculation, survey measurement and TLD badge in the unit exists to demonstrate those limits are respected. Confirm the current limits and averaging basis in the applicable radiation protection rules.

eLORA: the Account Before the Application

eLORA — AERB’s online regulatory platform — is where effectively all of this happens. Layout approvals, equipment records, RSO approval, licence issue, personnel monitoring linkage and renewals all live inside an institutional account. Registration itself is administrative: the hospital registers as an institution, with employer and RSO user accounts underneath. It typically takes days to a few weeks, and costs nothing to have ready.

Do it at the point you decide to build the lab, not at the point you need it. Everything downstream depends on the account existing, so an unregistered institution turns a two-week layout review into a six-week one for no engineering reason at all — and the registration process forces you to start thinking about the RSO, which is the item most likely to strand a finished lab.

One nuance worth knowing early: the licence, when it comes, is issued to the hospital. Not to your imaging OEM, not to your turnkey contractor, not to a consultant. Vendors can prepare drawings, run calculations, coordinate surveys and assemble the file — and a good one should. But the regulatory obligation, and the account it lives in, are yours. Any supplier who tells you they will “get your AERB licence” is describing an outcome they do not control.

The Licensing Sequence, Stage by Stage

The pathway below is the general shape of the process at the time of writing. Names and stage boundaries vary somewhat by equipment class; the logic does not.

Stage 1 — Institution registration on eLORA. Covered above. Do it first, do it early.

Stage 2 — Layout and shielding approval, before civil work. The room layout and its barrier-by-barrier shielding design go to AERB for review of dimensions, occupancy of surrounding spaces, equipment position and lead equivalence. Approval attaches to that specific layout and equipment class. This is the stage that must precede construction, and the next section explains why in commercial terms.

Stage 3 — Type-approved equipment, procured traceably. AERB operates a type-approval regime for medical diagnostic X-ray equipment. Before the purchase order is released, confirm that the exact model and the supplier are AERB-recognised, and that the transaction is recorded so the machine is traceable to your institution. With a major OEM this is a routine check. With grey-market imports or uncertified refurbished systems it is a genuine risk, and it is discovered at the worst possible moment — after payment.

Stage 4 — RSO nomination and approval. The facility nominates a Radiological Safety Officer, who must hold the AERB-recognised certification for the relevant field and be approved for your institution through eLORA. Start this at design stage. Section below.

Stage 5 — Installation and OEM acceptance. The imaging OEM installs the system and performs its own acceptance testing and equipment-level quality assurance. The resulting reports become part of your regulatory file, so specify in the purchase contract that you receive them in a usable form.

Stage 6 — Quality assurance testing and pre-commissioning radiation survey. Before licensing, the equipment is QA-tested and the installed room surveyed by a qualified professional or an agency recognised for the purpose. Leakage is measured at every barrier — walls, door edges and head details, the viewing window and its frame, the console position, and occupied spaces above and below. Any barrier that fails is remediated and re-surveyed. Build re-survey time into the programme; assuming a first-time pass is optimism, not planning.

Stage 7 — Licence application and issue. Submitted through eLORA with the layout approval, QA and survey reports, RSO approval, equipment details and personnel monitoring enrolment. Once AERB is satisfied, the licence to operate is issued to the hospital for a fixed term — commonly cited as around five years, though read the term stated on your own licence rather than assume it — and renewed through the same portal.

Statutory fees apply at several points in this sequence. The current schedule is published by AERB and should be confirmed at the time of application rather than carried across from a previous project.

Why Layout Approval Must Come Before Civil Work

If you take one thing from this article, take this.

The shielding layout is submitted and approved before you build, because AERB is approving a specific physical configuration: these dimensions, this equipment in this position, these barriers at this lead equivalence, against these adjoining occupancies. If the room you construct differs from the room that was approved, you do not have an approved room.

Consider what “differs” means in practice. A wall moved 400 mm to accommodate a duct. A door relocated to suit a corridor. A ward on the other side of a barrier converted to a staff rest room, changing its occupancy classification. A gantry orientation flipped during OEM drawing reconciliation. None of these feel like regulatory events on site. All of them can invalidate the calculation the approval rests on.

And the remedy is brutal, because lead lining is not a surface finish. It sits behind the modular panels, behind the plaster, behind the finished wall. Correcting shielding after fit-out means stripping finished surfaces, re-lining, re-panelling, re-routing any services that crossed the affected barrier, and re-surveying. The engineering is trivial; the demolition, rework and delay are not.

The rough shape of the penalty — indicative planning guidance, not a quotation:

Point at which a shielding change is identified	Practical consequence	Indicative cost impact
At design, before layout submission	Redraw and recalculate	Negligible — drawing time
After layout approval, before construction	Re-submit revised layout; short regulatory delay	Low; mainly programme time
During civil works, before panelling	Additional lead sheet and labour on an open wall	Moderate
After modular interiors are complete	Strip finishes, re-line, re-panel, re-route services, re-survey	High, plus several weeks of delay
After survey failure at licensing stage	All of the above, on the critical path, with the lab idle	Highest — carrying cost dominates

The cost curve is steep enough that it should govern a project management decision, not just a technical one: freeze the room layout, the equipment model and the adjoining occupancy schedule before you submit, and treat any subsequent change to any of the three as a regulatory change request, not a site variation. That single discipline prevents the most expensive avoidable failure in cath lab construction.

What a Shielding Layout Submission Contains

The document AERB reviews is not an architectural floor plan with a note about lead. It is a technical case. Broadly, it sets out:

• Room geometry — a scaled plan with internal dimensions and floor area for the procedure room, control room and technical room. AERB’s safety code prescribes minimum floor areas for X-ray installations; for interventional rooms this is generally in the region of 25 sq m, but that is a regulatory floor, not a design target. A workable single-plane procedure room is more like 40–55 sq m.
• Adjoining spaces on all six sides — every neighbouring area named by use, including the floors above and below, classified by occupancy. This is the section most often submitted incomplete, and the most common cause of a query coming back.
• Occupancy factors — the fraction of time each adjoining space is genuinely occupied by the same individual. Control rooms, offices, nurse stations and wards count as fully occupied; corridors, stairways, toilets, plant rooms and unattended parking carry progressively lower factors.
• Workload estimate — expected tube output, conventionally in mA-minutes per week, derived from projected caseload, average fluoroscopy time per case, cine runs and typical tube current. Under-declaring workload to reduce shielding is a false economy that resurfaces at survey.
• Operating potential — the kVp range, which sets the attenuation curve used.
• Barrier-by-barrier lead equivalence — required attenuation per barrier with its calculation basis, in millimetres of lead equivalent. Cath lab barriers commonly work out to 1.5–2 mm Pb, rising to 2.5–3 mm where a wall faces a fully occupied uncontrolled area at short distance.
• Equipment position and orientation — gantry, table, isocentre and detector, with the range of beam directions the system will use.
• Protected operator position — console location, the lead glass viewing window (typically 2 mm Pb equivalent) and its sightline to the table.
• Doors, penetrations and safety fittings — shielded door sizes and Pb equivalence, service penetrations, warning lights, interlocks and radiation signage.

Note what drives cost here: occupancy, not room size. A lab surrounded by corridors and plant rooms is materially cheaper to shield than an identical lab sandwiched between a ward and a public waiting area. That makes shielding a siting decision as much as an engineering one — another argument for resolving the layout before anyone pours concrete.

The RSO Requirement — Start It at Design Stage

An interventional facility requires an approved Radiological Safety Officer: typically an interventional cardiologist, radiologist or medical physicist attached to the facility, holding the AERB-recognised RSO certification for the relevant field and approved for that institution through eLORA.

The RSO is not a signature. The role owns the on-site radiation safety programme — personnel monitoring and TLD records, condition and periodic checking of protective equipment, survey documentation, safe working procedures, staff awareness, incident reporting and the interface with AERB.

Here is the practical problem, and it is the single most common reason a technically finished cath lab cannot yet be licensed: certification runs on fixed training and examination cycles. You cannot compress them by paying more or escalating. Identify your candidate at commissioning and you may face a wait measured in months while a completed installation sits idle.

The general shape of the pathway is to identify a suitably qualified clinician or medical physicist on staff, enrol them in an AERB-recognised certification course for the applicable field, complete the training and examination, then submit the nomination for institutional approval through eLORA. Eligibility criteria, course formats and recognised providers change, so verify current requirements with AERB before committing a candidate — and if the hospital may add radiology or radiotherapy capacity later, factor that into who you certify and in which field.

Sequencing AERB Against the Construction Programme

AERB work runs concurrently with construction, not after it. The table below shows the dependency structure — what must be complete before each construction milestone can safely proceed.

Construction milestone	AERB activity that must already be complete	Consequence of getting it out of order
Site selection and room siting	Feasibility view on adjoining occupancy and licensability	A location that cannot economically be shielded, discovered after commitment
Imaging purchase order	Confirmation that model and supplier are type-approved	An unlicensable machine already paid for
Start of civil works	Layout and shielding approval issued	Building to an unapproved configuration; rework risk on every barrier
Lead lining and modular interiors	Approved barrier schedule frozen	Wrong lead equivalence sealed behind finished panels
Services routing through barriers	Penetration details agreed against the approved layout	Unbaffled penetrations that fail survey
OEM installation	Institution registration, equipment record	Administrative hold at the licensing stage
Pre-commissioning survey	RSO certification underway or complete	Finished lab, no approved RSO, no licence
Clinical handover	Licence issued; TLD enrolment active	Operating without authorisation

Read that table as a purchasing instruction as much as a technical one. The imaging purchase order and the AERB layout submission belong in the same month. Where long-lead imaging delivery is the governing constraint, the regulatory file should be finished and waiting, not starting.

After the Licence: Continuing Obligations

Licensing is not a milestone you pass and forget. The hospital and its RSO carry standing duties for as long as the lab operates. In general terms:

• Personnel monitoring. Every radiation worker is enrolled for personnel monitoring — TLD or equivalent badges — issued, worn, exchanged on the prescribed cycle and read by an accredited laboratory, with dose records maintained and reviewed. Investigate and document any anomalous reading rather than filing it.
• Protective equipment management. Lead aprons, thyroid shields, leaded eyewear, the ceiling-suspended screen and the table-side skirt need an inventory, a periodic integrity check (aprons crack and delaminate invisibly), and a replacement policy.
• Periodic quality assurance testing. QA of the X-ray equipment is repeated at prescribed intervals and after major service or component replacement, with reports retained.
• Records. Layout approval, survey and QA reports, RSO approval, equipment records, personnel dose history, training records and incident reports form the file an inspection will ask for. Keep it as one maintained set, not documents scattered across departments.
• Intimation of changes. Equipment replacement, relocation, decommissioning, change of RSO or modification of the room are all events AERB expects to be told about, and some require fresh approval before the change is made.
• Renewal. The licence runs for a fixed term and is renewed through eLORA. Start well before expiry, with current survey and QA documentation in hand — a lapsed licence is an operational stoppage, not a paperwork problem.

Timeline Shape and Where Delay Actually Comes From

Plan for three to six months of regulatory lead time, running in parallel with construction rather than after it. That is an indicative planning band, not a commitment — actual durations depend on submission quality, equipment class, certification cycles and AERB’s own workload.

The rough distribution of that time:

Stage	Indicative duration	Principal risk to the duration
Institution registration on eLORA	Days to a few weeks	Incomplete institutional documentation
Layout and shielding submission preparation	2–4 weeks	Unfrozen layout; OEM drawings not reconciled
Layout approval	Typically a few weeks	Queries on adjoining occupancy or missing calculations
RSO certification	Governed by course and examination cycles	Late identification of a candidate
QA testing and radiation survey	1–3 weeks	Availability of the survey agency; remediation and re-survey
Licence application to issue	Typically weeks after a complete submission	Incomplete file; unresolved survey findings

The honest observation about delay is that almost none of it originates with the regulator. It originates with incomplete submissions, layouts that changed after approval, RSO certification started too late, and survey agencies booked at the last minute. A complete, internally consistent first submission is worth more to your programme than any amount of follow-up.

Common Mistakes That Cause Rejection or Rework

• Submitting the layout after construction has started. The dominant failure mode, and the most expensive.
• Incomplete adjoining-occupancy information. Naming the spaces on the four walls but omitting the floors above and below, or describing a space by its label rather than its actual use. Queries cost weeks.
• A blanket shielding specification. “2 mm lead everywhere” over-specifies some barriers, under-specifies others, and gives the reviewer no calculation basis. Every barrier needs its own reasoning.
• Under-declared workload. A caseload declared well below what the unit intends to do produces thinner barriers that pass on paper and fail in practice — and re-lining a working lab is worse than lining an empty one.
• Execution defects invisible on the drawing. Butt joints without adequate overlap, fixings driven through lead without lead-disc capping, and conduits, ducts, socket boxes and window frames cut straight through a barrier without an offset or a lead collar. Each is a hole in an otherwise correct shield, and each shows up when a surveyor puts a meter against the wall.
• Equipment that is not type-approved or not traceable. Particularly with uncertified refurbished imports.
• RSO identified at commissioning. Repeated deliberately: the most common reason a completed lab sits idle.
• Treating the survey as a formality. No re-survey window in the programme, no contingency for remediation, and a survey agency engaged three days before the intended handover date.

Where to Go From Here

AERB compliance is an engineering deliverable with a construction sequence attached, not paperwork to be handled at the end. Treated that way — layout frozen and submitted before civil work, equipment verified before the purchase order, RSO enrolled at design stage, survey scheduled with a re-test window — it costs you nothing on the programme. Treated as an afterthought, it becomes the most expensive line item nobody budgeted for.

For the technical scope behind this process — barrier calculation method, room and structural requirements, power and HVAC design, and the shielding execution details that decide whether a lab passes survey — see our cath lab setup service page. If your project is a medical college teaching hospital rather than a standalone cardiac unit, the radiodiagnosis suite carries the same AERB obligations inside a much wider regulatory set; our companion guide to NMC infrastructure norms for a new medical college covers how those approvals stack against the academic and clinical requirements.

For a shielding calculation and AERB submission built on your actual drawings, adjoining occupancy and equipment model rather than on typical values, request a quote and we will start with a site survey and a feasibility view on whether the location is licensable.