How Long Should You Keep Lab Notebooks? Retention Requirements by Field

“Can I throw away my old lab notebooks?”

It’s a simple question with a surprisingly complicated answer. You’ve got five years of bound notebooks taking up shelf space in your office. Or maybe twenty years worth in a storage room somewhere. Some are from completed projects. Some are from research that never went anywhere. A few are from work you can barely remember.

Before you decide what stays and what goes, you need to understand the retention requirements for your field. Toss the wrong notebook and you could face serious consequences—failed audits, rejected manuscripts, invalidated patents, or regulatory violations.

Keep everything forever and you’ll drown in paper, pay for unnecessary storage, and spend hours searching through irrelevant old records.

This guide breaks down exactly how long you need to keep lab notebooks based on your field, funding source, and regulatory requirements. Plus, we’ll show you how digital lab notebooks eliminate the storage problem entirely.

The Short Answer (It Depends On Your Field)

Lab notebook retention requirements vary dramatically based on:

• Your research area: FDA-regulated vs. basic research vs. clinical trials
• Funding source: Federal grants, industry sponsors, or institutional funds
• Publication status: Published work requires longer retention
• Patent potential: Anything patentable needs indefinite retention
• Your institution: Universities often have their own policies

Let’s break down the specific requirements for each situation.

Federal Grant-Funded Research (NIH, NSF, DOE)

NIH-Funded Research: 3 Years Minimum

Official requirement: Keep research records for at least 3 years after the final expenditure report or final payment, whichever is later.

In practice: Most institutions require 5-7 years because published papers from that work may face scrutiny years later. If your NIH-funded research led to publications, keep records for at least 7 years from publication date.

What counts as “research records”: Lab notebooks, primary data, protocols, consent forms, and anything needed to reproduce or verify the research.

Special cases: Research involving human subjects or clinical data may have additional retention requirements under HIPAA or institutional IRB policies.

NSF-Funded Research: 3 Years After Final Report

Official requirement: Maintain records for 3 years after submission of the final project report.

In practice: Same as NIH—most institutions extend this to 5-7 years to cover potential questions about published work, replication studies, or data sharing requests.

Practical advice: If you published from NSF-funded work, keep records until you’re certain no one will question the data. Seven years from publication is a safe standard.

DOE-Funded Research: 3 Years After Completion

Official requirement: Keep records for 3 years after final payment or completion of required deliverables.

Additional consideration: DOE-funded research often involves national laboratories or facilities with their own stricter requirements. Check your specific agreement.

FDA-Regulated Research and Industry Work

Drug Development: 2 Years After Marketing Approval (or Longer)

FDA requirement: For research supporting a new drug application (NDA), keep records for at least 2 years after drug approval or discontinuation of development.

Reality check: Most pharmaceutical companies keep records much longer—10-15 years or even indefinitely. Why? Post-market surveillance, patent litigation, adverse event investigations, and the possibility of new indications requiring the original data.

If you worked on a drug that got approved: Your lab notebooks from that work are legally significant documents for decades. Keep them indefinitely or ensure your institution has proper archival systems.

Medical Device Research: Device Lifetime Plus 2 Years

FDA requirement: Device manufacturers must maintain design history files for the lifetime of the device plus 2 years.

What this means for researchers: If you contributed to device development, those records need to be available for the entire time the device is on the market—potentially 20+ years for successful devices.

Clinical Trials: Minimum 2 Years After Study Completion

FDA requirement: Keep clinical trial records for at least 2 years after study completion or discontinuation.

ICH GCP guidelines: International standards recommend keeping essential documents for at least 2 years after the last approval of a marketing application or at least 2 years since formal discontinuation of clinical development.

Sponsor requirements: Industry sponsors often require longer retention—5-7 years or more—specified in your research agreement.

GLP Studies: Study Completion Plus 10+ Years

Official requirement: Good Laboratory Practice regulations require retaining records for a minimum of 10 years following completion of the study.

What qualifies as GLP: Nonclinical laboratory studies supporting applications for research or marketing permits for products regulated by FDA (drugs, devices, biologics, food additives).

In practice: GLP facilities often keep records indefinitely because regulatory questions can arise decades later.

Published Research and Academic Standards

Journal Requirements: Varies by Publisher

Common standard: Most major scientific journals require authors to retain primary data for 5-10 years after publication.

Why it matters: If your paper is questioned, challenged, or selected for replication studies, you need to provide the original data. Inability to produce records can result in retraction—even if the science was sound.

Examples of specific policies:

• Nature journals: Minimum 5 years, longer if legally required
• Science: Materials and data must be available to readers
• PLOS: Data should be available indefinitely
• Cell Press: 10 years recommended

Best practice: Keep lab notebooks from published work for at least 10 years. If the work is highly cited or controversial, keep them indefinitely.

Unpublished Research: Institution Policy Applies

If you never published: Follow your institution’s general records retention policy, typically 3-5 years.

Exception: If the unpublished work was grant-funded, the grant retention requirements still apply even if you didn’t publish.

Patent-Related Research

Patented Inventions: Keep Indefinitely

Why: Lab notebooks documenting invention conception and reduction to practice are critical for patent validity, priority disputes, and litigation.

Patent lifecycle: US utility patents last 20 years from filing. But patent litigation can occur decades after expiration if the technology remains valuable.

Best practice: If your work contributed to a patent, keep those notebooks for the life of the patent plus at least 10 years. Better yet, keep them indefinitely in a secure archive.

Potentially Patentable Work: Keep Until Patent Decision Made

The uncertainty period: You may not know if work is patentable for years. Discovery today could enable a patent application five years from now.

Conservative approach: If there’s any possibility of commercial application, keep notebooks for at least 7-10 years or until patent decisions are finalized.

Institutional Policies

Check your institution’s specific requirements. Universities, research institutes, and companies often have retention policies that exceed federal minimums.

Common institutional standards:

• Academic institutions: 3-7 years after project completion
• Pharmaceutical companies: 10-15 years or indefinitely
• Government labs: 10+ years with formal archival systems
• Biotech startups: Until acquisition or product approval (then longer)

Who owns the notebooks: In most cases, the institution (not the individual researcher) owns lab notebooks. This means you can’t take them when you leave, and the institution decides retention policy.

Special Situations

Student and Trainee Work

Graduate student notebooks: Belong to the university, must be retained according to institutional policy even after graduation. Typically 3-7 years after degree completion unless published or patent-related.

Postdoc notebooks: Same as graduate students—institutional property with standard retention requirements.

Common mistake: Taking notebooks when you leave. This violates institutional policy and could affect patent rights or data integrity investigations later.

Collaborative Research

Multi-institution projects: Each institution keeps its own records according to its policy, but sponsor agreements may impose longer requirements on all parties.

Industry-academic partnerships: Usually governed by research agreements specifying retention periods. Industry sponsors typically require 7-15 years.

Research Misconduct Investigations

Active investigation: All records must be retained indefinitely until the investigation concludes and any appeals are exhausted.

After investigation: Records typically kept for additional 7 years beyond the investigation close date.

Practical Retention Strategy

When in doubt, use the longest applicable requirement. If your work is NIH-funded (3 years), published in Nature (5 years), and potentially patentable (indefinite), keep it indefinitely.

Tiered approach for paper notebooks:

• Years 0-3: Active storage, readily accessible on lab shelves
• Years 3-7: Archive storage, labeled and indexed but in secure location
• Years 7+: Deep archive for published, patented, or legally significant work

What to keep indefinitely:

• Notebooks supporting published papers (especially high-impact publications)
• Any work related to patents
• Research leading to approved drugs or devices
• Work with ongoing legal or regulatory significance
• Foundational research that future work builds upon

What you can potentially discard (after minimum retention period):

• Failed preliminary experiments with no publications
• Routine quality control logs past retention period
• Work from abandoned projects with no commercial value
• Student rotation projects that went nowhere

The Digital Solution: Keep Everything Forever

Here’s the truth: retention requirements are only painful with paper notebooks.

Physical storage costs money. Shelves take up space. Old notebooks are hard to search. Moving buildings means boxing and tracking hundreds of volumes. After 10 years, you can’t even remember what’s in notebook #47 from 2014.

Digital lab notebooks eliminate the entire problem:

• Infinite retention at zero cost: Cloud storage costs pennies. Keep everything forever.
• Instant search: Find any experiment from any year in seconds
• Automatic backups: Multiple geographic locations, disaster-proof
• Export on demand: Generate PDFs or data exports for specific retention requirements
• No physical space: Ten years of research fits in the cloud, not in filing cabinets
• Permanent accessibility: Access 15-year-old notebooks as easily as yesterday’s

With ELabELN, retention becomes automatic. Document your work, and it’s permanently archived with automatic timestamps, version history, and complete audit trails. No decisions about what to keep or discard. No boxes to move. No degrading paper. Just permanent, searchable, secure records.

Quick Reference: Retention Requirements by Field

Academic research (NIH/NSF funded): Minimum 3 years after final report, recommended 5-7 years, 10 years if published

FDA-regulated drug research: Minimum 2 years after approval/discontinuation, typically 10-15 years, indefinitely if significant

Medical device research: Device lifetime plus 2 years (often 20+ years)

Clinical trials: Minimum 2 years after completion, often 5-7 years per sponsor requirements

GLP studies: 10+ years after study completion

Published research: 5-10 years from publication date (journal dependent)

Patent-related work: Indefinitely (life of patent plus 10+ years)

Unpublished, unfunded exploratory work: 3-5 years per institutional policy

Final Recommendation

For paper notebooks: Keep everything for at least 7 years. Keep published and patent-related work indefinitely. Check your specific institutional, funding, and regulatory requirements.

For digital notebooks: Keep everything forever. Storage is cheap, search is instant, and you’ll never have to make difficult decisions about what might be important 15 years from now.

The question “how long should I keep lab notebooks?” is only difficult with paper. Go digital, and the answer becomes simple: forever, automatically, at no cost.