Vaccine cold storage room with temperature monitoring
Indiana VFC Compliance

Indiana Vaccine Temperature Monitoring

Meet Indiana's VFC Program temperature monitoring requirements with A2LA-accredited sensors, continuous DDL logging, and audit-ready records accepted by IDOH.

≤30 min
Maximum DDL logging interval required by Indiana
3 years
Minimum temperature record retention
12–24 mo
VFC compliance visit frequency (some unannounced)
A2LA
ATEK's calibration accreditation — Cert #7486.01

Indiana VFC Temperature Requirements

Indiana follows CDC and federal VFC guidelines. All publicly funded vaccine providers must maintain these ranges continuously.

Refrigerator Vaccines

2°C – 8°C (36°F – 46°F)

All inactivated vaccines must be stored in a refrigerator. Target: 5°C (40°F).

Influenza
Hepatitis A & B
HPV
Tdap

Freezer Vaccines

-50°C to -15°C (-58°F to +5°F)

Varicella-containing vaccines require continuous frozen state. Target: -15°C (5°F).

Varicella (MMRV)
Zoster

Ultra-Cold Vaccines

-80°C to -60°C (-112°F to -76°F)

mRNA vaccines require ultra-cold storage with DDLs calibrated for that range.

mRNA COVID-19

Digital Data Logger (DDL) Requirements

Indiana Policy-9 mandates certified, calibrated DDLs in every vaccine storage unit. These are the minimum specifications.

Continuous Logging

Data loggers must record temperatures every 30 minutes or less — 24 hours a day, 7 days a week.

4,000+ Reading Memory

Each DDL must store a minimum of 4,000 readings. Downloads required at least every 2 weeks.

Buffered Probe Required

Probe must reflect actual vaccine temperature, not ambient air. Glycol or buffered probes required.

Out-of-Range Alarms

Active alarm system required to notify staff immediately when temperatures exceed safe thresholds.

3-Year Record Retention

All temperature logs must be saved and accessible for a minimum of 3 years.

Annual Calibration

Indiana requires DDLs to be certified and calibrated. ATEK sensors include A2LA-accredited calibration.

How ATEK Meets Every Requirement

ATEK sensors are engineered to satisfy Indiana VFC Policy-9 out of the box — nothing to configure, nothing to worry about during your compliance visit.

Indiana Requirement
ATEK Solution
Record every 30 minutes
ATEK-T-WF logs continuously — configurable intervals down to 5 minutes
4,000+ reading storage
Unlimited cloud retention — no download needed, always accessible
Buffered probe
External calibrated probes with glycol buffer option included
Out-of-range alarm
Real-time alerts by SMS, email, and phone call — 24/7
3-year record retention
Platform retains all logs indefinitely — export-ready for VFC audits
Annual calibration (certified)
A2LA Certificate #7486.01 (ISO/IEC 17025) — accepted by Indiana IDOH

Get VFC-Compliant Monitoring

ATEK has helped hundreds of immunization providers pass compliance visits with continuous temperature monitoring, A2LA-accredited calibration, and always-on audit trails.

DDL-compliant sensors with buffered probes — ready out of the box

A2LA Certificate #7486.01 — calibration accepted by IDOH

Audit-ready temperature reports exportable in minutes

24/7 SMS, email, and phone alerts for excursions

Questions about VFC compliance?

Speak directly with our team about your storage setup and Indiana VFC requirements.

Request a Demo or Quote

Frequently Asked Questions

What temperature monitoring devices does Indiana require for VFC providers?

Indiana requires certified, calibrated digital data loggers (DDLs) in every vaccine storage unit. DDLs must record temperatures at least every 30 minutes, store at least 4,000 readings, use a buffered probe, and have active out-of-range alarms. Data must be downloaded and reviewed at least every 2 weeks and retained for a minimum of 3 years.

Is ATEK's calibration accepted by Indiana's immunization program?

Yes. Indiana requires DDLs to be "certified and calibrated." ATEK holds A2LA Certificate #7486.01 (ISO/IEC 17025:2017) — the same accreditation standard used by NIST-traceable labs. This is accepted by IDOH and recognized by CDC for VFC compliance visits.

How often are VFC compliance visits conducted in Indiana?

Indiana's Regional Quality Assurance Specialists conduct compliance visits every 12–24 months. Some visits are unannounced. Providers with out-of-range temperature excursions or missing DDL data are flagged and must submit remediation plans within the required timeframe.

What happens if temperatures go out of range?

Indiana Policy-9 requires providers to immediately report temperature excursions. Affected vaccines must be quarantined and marked "Do Not Use" pending an assessment. ATEK's platform logs every excursion with a timestamped audit trail and can generate the documentation required by IDOH.

Does ATEK offer backup data loggers?

Yes. Indiana VFC requires at least one backup DDL per site. ATEK offers spare sensors that can be activated instantly, with the same A2LA calibration certificate to maintain compliance continuity.

Can ATEK's platform generate the temperature logs required for VFC audits?

Yes. ATEK's platform generates exportable temperature reports covering any date range, including min/max/mean statistics and all excursion events — in the format expected by Indiana's IDOH compliance visit documentation.

Ready for Your Next VFC Compliance Visit?

ATEK's monitoring platform is built for healthcare providers who can't afford a failed inspection. Get compliant before the visit finds you.