QC Mean, SD and CV Calculator
Paste control results to get the mean, SD, CV and ±1, 2 and 3 SD limits for a new lot or a monthly QC summary, ready to print.
Free CLIA tools and guides for small labs
Calculators for QC, certificates and inspections, guides tied to the section of 42 CFR 493 they explain, and software comparisons built from each vendor's own documents.
Free tools for the bench
10 calculators and worksheets for the jobs a small lab repeats. Each one works in the browser, with nothing to sign up for and nothing sent to us.
Levey-Jennings Chart Maker with Westgard Rules
Paste control results and get a printable Levey-Jennings chart with ±1, 2 and 3 SD lines and each run checked against the Westgard rules.
Which CLIA Certificate Do I Need?
Four questions about your test menu give the certificate type, the rules behind it, the CMS fee, how it is surveyed and the next form.
CLIA Fee Calculator
Certificate type and annual test volume give the CMS certificate and survey fees for one 2-year cycle, from CMS's fee schedule (updated 2024).
CLIA Inspection Checklist
What a CMS surveyor asks to see, area by area, each item tied to its 42 CFR 493 section. Mark it done, open or N/A, then print.
Lab Competency Assessment Form (Six Elements)
A printable competency record per person and test system: the six CLIA procedures, who may assess, and the first-year and annual due dates.
Total Allowable Error and Sigma Calculator
Turn TEa, bias and CV into a sigma metric, with CLIA's PT limits as TEa presets and the Westgard Sigma Rules that fit the result.
IQCP Risk Assessment Worksheet
Walk CMS's five IQCP risk components, record each hazard and its control, and print a draft quality control plan for the director to sign.
Proficiency Testing Score Calculator
Score a PT event by analyte, see if it is satisfactory, flag an unsuccessful history, and check one result against its CLIA limit with an SDI.
Calibration Verification and AMR Calculator
Assigned vs measured values by level: recovery, pass or fail against your lab's limits, and the reportable range the passing levels support.
How an inspector reads your lab
Three things, in the order a lab builds them. Each row links the tools and guides for that step.
- A
Certificate
The certificate on file has to cover every test on your menu. A lab that adds a moderate or high complexity test to a waived menu needs a different certificate first.
- B
Quality control
Then the records behind each result: control runs, the charts, what was done when a run failed, and how the lab did in proficiency testing.
- C
Inspection
On survey day it comes together with the people: personnel files, competency assessments, the procedure manual and a sample of patient reports.
Pick your part of the lab
Each hub gathers one part of the lab's work: the tools, comparisons and guides for it, and the rules behind them.
CLIA Certificates
2 tools, 1 comparison, 9 guides, 1 list
Quality Control & PT
6 tools, 4 comparisons, 3 guides, 1 list
Staff & Inspections
2 tools, 3 comparisons, 5 guides
Lab Software & Billing
9 comparisons, 4 guides
Recent guides
Plain-language reads of the CLIA rules, each one naming the section it explains.
Keep the bench inspection-ready.
Found a page that no longer matches the rule, a tool that gave a wrong answer, or a vendor document we should read? Tell us and we will check it against the source.