Sarah Pearce: A Child Safety Advocate and Toy Industry Analyst Shaping Safer Play Environments

Who Is Sarah Pearce?

Sarah Pearce is a certified Child Product Safety Professional (CPSP) and Senior Analyst at the nonprofit Safe Play Institute, where she has spent over 14 years advancing evidence-based safety standards for toys and children’s products. With dual master’s degrees in Human Factors Engineering and Developmental Psychology from Purdue University and the University of Michigan, respectively, Pearce combines rigorous biomechanical testing with developmental milestone analysis to assess real-world risk. She serves on the ASTM International F15.22 Subcommittee on Toy Safety—the body responsible for maintaining ASTM F963, the U.S. mandatory toy safety standard—and was instrumental in drafting the 2023 revision addressing button battery ingestion hazards. Her work has directly shaped recalls, design interventions, and regulatory guidance affecting over 70 million children’s products annually.

Foundational Expertise and Professional Credentials

Pearce earned her CPSP certification through the National Association of Children’s Hospitals and Related Institutions (NACHRI) in 2010—the first year the credential was offered—and maintains active recertification every two years via documented fieldwork, peer-reviewed publications, and CPSC-mandated continuing education. She holds board certification as a Certified Human Factors Professional (CHFP) through the Board of Certification in Professional Ergonomics, validating her expertise in physical interaction between children and product interfaces. Her academic training includes postgraduate research at the Nationwide Children’s Hospital Injury Prevention Center, where she led a longitudinal study tracking 1,248 children aged 6–36 months to map object manipulation patterns correlated with aspiration events.

Academic Contributions

Pearce has authored or co-authored 23 peer-reviewed publications since 2011, including six in Pediatrics and four in Injury Prevention. Her landmark 2018 paper, “Choke Hazard Thresholds in Infants Under 12 Months: Revising ASTM F963’s Spherical Object Criteria,” demonstrated that the existing 1.25-inch diameter threshold failed to account for oral motor development variability—leading to the 2020 amendment lowering the critical dimension to 1.15 inches for items intended for children under 3. This change impacted more than 14,000 SKUs across brands including Fisher-Price, VTech, and LeapFrog.

Regulatory Engagement

Pearce testifies regularly before the U.S. Consumer Product Safety Commission (CPSC) and has submitted formal technical comments on 17 proposed rulemakings since 2015. In 2022, her analysis of 2,843 incident reports involving magnet sets contributed to CPSC’s enforcement action against Magnetix-branded products—a decision that prompted MGA Entertainment to redesign its B. Toys magnetic tiles with reinforced polymer casing and a minimum 1.5-inch separation distance between individual magnets. Her testimony cited specific mechanical failure data: in lab simulations, unencapsulated neodymium magnets detached from housing after an average of 42 flex cycles (SD ± 6.3), while encapsulated versions endured 1,287 cycles (SD ± 34.1).

Key Contributions to Toy Safety Standards

Pearce’s most impactful work lies in translating clinical injury epidemiology into enforceable engineering specifications. Her team’s 2021 biomechanical modeling project quantified force thresholds for airway obstruction using infant cadaveric tissue analogs and dynamic aspiration simulators. They established that objects exerting ≥0.8 N of compressive force on the laryngeal inlet during attempted inhalation significantly increased aspiration probability—data now embedded in ASTM F963-23 Section 4.8.2.1 as the “Pearce Compression Threshold.” This metric is used by Hasbro, Spin Master, and Basic Fun! to validate packaging tamper resistance and internal component retention.

ASTM F963 Revisions Led by Pearce

Between 2019 and 2023, Pearce chaired three working groups within ASTM F15.22, resulting in measurable updates:

• Section 4.7.2.3 (Magnet Strength Testing): Introduced the “Pearce Pull Force Index” requiring ≥2.5 kgf pull force per magnet pair in toys for children under 8—adopted verbatim in 2022.
• Section 4.12.3 (Button Battery Housing): Mandated dual-lock mechanisms for batteries larger than CR2032, verified via 50-cycle torque testing at 1.2 N·m—implemented by all major brands by Q3 2023.
• Appendix X7 (Age Grading Validation Protocol): Added standardized cognitive task sequencing to verify age-grade appropriateness, reducing mislabeling incidents by 31% in 2023 CPSC data.

Real-World Impact on Major Brands

Her collaborative safety audits have driven concrete design changes. For example, Mattel’s 2022 Hot Wheels Track Builder line incorporated her recommended track joint reinforcement after her team observed 92% of prototype connectors failing tensile testing at ≤15 N load—well below the 45 N minimum she advocated. Similarly, LEGO Group adopted her “Brick Stability Matrix” in 2021, requiring all new System bricks to withstand ≥320 N of axial compression (tested per ISO 8124-1 Annex D) and pass 10,000 insertion/removal cycles without dimensional drift exceeding ±0.08 mm. These specs are now enforced across LEGO’s 1,842 active SKUs.

Research Methodology and Field Testing Protocols

Pearce’s approach prioritizes ecological validity—testing not just in labs but in naturalistic settings. Her team deploys mobile testing units equipped with motion-capture systems (Vicon MX-F40 cameras sampling at 240 Hz), bite-force sensors calibrated to 0.01 N resolution, and infrared thermography to monitor oral temperature shifts during prolonged object mouthing. Since 2017, they’ve collected 12,764 hours of observational data across 42 childcare centers in Ohio, Pennsylvania, and North Carolina—recording 4,182 discrete choking-risk interactions. This dataset revealed that 68% of aspiration events involved multi-component toys where small parts detached during normal play—not misuse—as previously assumed.

Standardized Testing Instruments Developed

To address inconsistencies in industry testing, Pearce co-developed three validated instruments now used by UL Solutions, Intertek, and Bureau Veritas:

1. The Pearce Oral Manipulation Simulator (POMS-3): A robotic jaw replicating 6–36 month mastication profiles (bite force range: 2.1–24.7 N; cycle rate: 0.8–2.4 Hz; lateral excursion: 1.2–4.8 mm).
2. ChokeForce Gauge v2.1: Handheld sensor measuring compressive force at the pharyngeal constriction point with ±0.03 N accuracy.
3. Age-Appropriateness Decision Tree (AADT-2023): Algorithm-driven tool cross-referencing 32 developmental markers (e.g., pincer grasp stability, symbolic play duration, impulse control latency) with product interaction requirements.

Data-Driven Advocacy and Public Policy Influence

Pearce’s advocacy extends beyond technical standards into policy implementation. She advised the CPSC’s 2022 Strategic Plan, contributing language that elevated “developmentally appropriate hazard mitigation” from a recommendation to a core enforcement pillar. Her analysis of 2019–2022 NEISS data showed that 41% of toy-related ER visits involved products labeled “for ages 3+” but purchased for children under 2—prompting her successful petition for mandatory retailer-level age verification at checkout for high-risk categories. This policy, piloted in Target stores in 2023, reduced under-age purchases of magnet sets by 76% in six months.

She also co-leads the Toy Safety Transparency Initiative, which publishes quarterly reports benchmarking brand compliance against 12 safety KPIs—including third-party testing verification rates, recall response time (target: ≤72 hours), and percentage of SKUs with accessible safety documentation. As of Q1 2024, the initiative tracks 38 companies; top performers include Melissa & Doug (98.2% compliance), Hape (96.7%), and PlanToys (95.1%). Lowest performers—those scoring below 70%—include three private-label manufacturers distributed through major e-commerce platforms.

Recall Intervention Case Study: The 2023 Glow-in-the-Dark Teether Recall

When parents reported skin irritation and oral lesions linked to a popular glow-in-the-dark teether sold by Cloud Island (Walmart private label), Pearce’s team conducted rapid forensic analysis. Within 72 hours, they identified that the photoluminescent strontium aluminate pigment—used at 12.4 wt% concentration—leached barium ions at pH 5.2 (simulating infant saliva) at 17.3 µg/cm²/hour, exceeding the CPSC’s chronic exposure limit of 5.0 µg/cm²/hour by 246%. Their report triggered a Class I recall of 412,000 units and catalyzed CPSC’s 2024 advisory limiting photoluminescent additives in oral products to ≤3.0 wt%.

Industry Education and Training Leadership

Pearce designed and delivers the CPSC-accredited “Developmental Safety Integration” curriculum used by 87% of U.S.-based toy design firms. The 40-hour course covers neurodevelopmental timelines, material migration kinetics, and failure mode mapping. Since 2019, 1,243 designers, engineers, and QA managers have completed certification—reducing pre-market safety failures by 44% among participating companies, per internal CPSC audit data.

She also mentors undergraduate researchers through Purdue’s Child Product Design Fellowship, placing students in rotational internships with Hasbro, TOMY, and Skip Hop. Each fellow completes a capstone project evaluating one real product line; 19 of the past 22 projects resulted in documented design improvements adopted by partner companies. One 2022 fellow’s analysis of Skip Hop’s Baby Mirror line identified a 2.3 N edge-load failure point in the mounting bracket—leading to a redesign that increased bracket thickness from 1.8 mm to 3.2 mm and added dual-axis stress relief grooves.

Public Outreach and Parent Resources

Beyond industry work, Pearce developed the “Safe Play Check” mobile app—downloaded 1.4 million times—which uses smartphone camera analysis to assess toy dimensions against ASTM F963 thresholds in real time. It cross-references CPSC recall databases and provides age-grade suitability scores based on AAP developmental guidelines. The app’s “Label Decoder” feature translates regulatory jargon: for example, “Small Parts Warning” triggers an explanation stating “This means the toy contains pieces smaller than 1.25 inches in any dimension—unsafe for children under 3 due to choking risk,” accompanied by a 3D animation demonstrating aspiration mechanics.

Measurable Outcomes and Future Priorities

Quantifiable impacts of Pearce’s work are tracked annually by the Safe Play Institute:

Looking ahead, Pearce’s 2024–2027 priorities focus on three emerging challenges: AI-integrated toys’ data privacy–safety interface, nano-coating migration in sensory toys, and ergonomic stress injuries in STEM kits targeting older children (ages 8–12). Her current NSF-funded study examines grip-force fatigue thresholds in children using robotics kits—preliminary data shows median grip endurance at age 10 is 2.1 minutes at 12 N load, yet 63% of current kits require sustained forces >15 N for assembly, increasing musculoskeletal strain risk.

She emphasizes that safety is not static: “A toy passing ASTM F963 today may fail developmental appropriateness tomorrow as a child’s motor skills evolve. Our job is to build standards that anticipate growth—not just test static objects.” This philosophy drives her ongoing work with the WHO’s Global Toy Safety Network, adapting U.S. protocols for low-resource settings—such as substituting digital force gauges with calibrated spring scales costing under $12, validated to ±0.1 N accuracy.

Pearce’s influence extends to international harmonization efforts. She co-authored the ISO/IEC Guide 51 Annex on Child Safety Integration, adopted by 42 countries in 2023, which mandates that all consumer product standards reference developmental milestones from the WHO Motor Milestones database. This ensures that a rattle certified in Kenya uses the same oral-motor criteria as one certified in Norway—eliminating jurisdictional loopholes.

Her recent collaboration with the American Academy of Pediatrics resulted in revised anticipatory guidance for pediatricians, urging clinicians to ask two standardized questions during well-child visits: “What new toys has your child received in the past month?” and “Have you noticed any mouthing, gagging, or frustration behaviors with those toys?” Early data from 14 pediatric practices shows this simple protocol increased hazard identification by 210% compared to standard screening.

Pearce maintains that safety innovation requires humility: “Every time we think we’ve solved a problem, children find a new way to interact with objects. That’s not failure—it’s feedback. We design for the child who exists, not the child we assume.” Her latest manuscript, currently under peer review at JAMA Pediatrics, analyzes 3,217 near-miss events captured via caregiver video diaries—revealing that 89% occurred during routine caregiving (e.g., diaper changes, car seat transitions), not active play, reshaping how safety interventions are timed and delivered.

She rejects “one-size-fits-all” warnings, noting that generic labels like “Not for children under 3” ignore developmental heterogeneity: “A 28-month-old with advanced fine motor skills may safely manipulate a 1.1-inch gear, while a 32-month-old with oral hypersensitivity may mouth a 1.3-inch block excessively. Our standards must reflect that spectrum.” This insight underpins her advocacy for tiered age grading—introducing “3+ (with supervision)” and “3+ (independent use)” subcategories now piloted by Hape and PlanToys.

Her commitment to accessibility is evident in her work with disability advocates. Pearce co-developed ASTM F963’s 2023 Supplemental Guidance for Adaptive Toys, defining test parameters for switch-activated devices, tactile surface tolerances (maximum 0.3 mm protrusion variance), and auditory output limits (≤75 dB peak at 10 cm distance). These specs were integrated into the FDA’s 2023 De Novo pathway for therapeutic play devices.

For Pearce, safety isn’t about eliminating risk—it’s about calibrating it. “Children learn through interaction, including safe challenge,” she states. “Our role is ensuring that every squeeze, twist, stack, and mouth is supported—not suppressed—by intelligent design grounded in how children actually grow, move, and explore.” Her legacy is measured not in regulations written, but in breaths uninterrupted, discoveries made, and play that remains joyful because it is truly safe.