In Compliance: The Compliance Information Resource for Electrical Engineers logo
Product Safety, Certifications, and Compliance
The Decisions That Determine Market Success
Including
How Engineering Education Can Build Safer Products

Introduction to Fault‑Managed Power

Expert Insights

EMC Concepts Explained

Hot Topics in ESD

Including
How Engineering Education Can Build Safer Products

Introduction to Fault‑Managed Power

Expert Insights

EMC Concepts Explained

Hot Topics in ESD

May 2026
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May 2026
Volume 18 l Number 5
Contents
Feature Articles
Product Safety, Certifications, and Compliance: The Decisions That Determine Market Success

How Product Launches Are Won or Lost Long Before the Deadline
By John Allen
How Engineering Education Can Build Safer Products

Equipping Engineers to Navigate Standards and Safety Responsibilities
By Steli Loznen
Introduction to Fault-Managed Power

IEEE International Symposium on Product Compliance Engineering 2025 Best Paper Award Winner
By Dave Lorusso, Stanley Mlyniec, and Jonathan Casey
Columns
By Bogdan Adamczyk
Tom Ricciardelli for EOS/ESD Association, Inc.
Departments
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Compliance News
FCC To Accelerate Access to High-Speed Networks
The U.S. Federal Communications Commission (FCC) has approved new rules intended to facilitate the more rapid deployment of high-speed cable networks.

Detailed in a Final Report and Order issued in late March, the new rules will:

  • Eliminate filing requirements related to network change disclosure requirements;
  • Overhaul and streamline rules applicable to technology transition discontinuance applications…
NASA’s Van Allen Probe Disintegrates After 14 Years
The National Aeronautics and Space Administration (NASA) has confirmed that its Van Allen Probe A disintegrated on its return to Earth, after nearly 14 years in space.

According to an article posted to the website of Astronomy.com, most of the 1300-pound probe burned up upon reentry over the eastern Pacific Ocean early in March. However, the probe’s twin, Van Allen Probe B, is still in orbit and is expected to reenter the Earth’s atmosphere by 2030.

The Van Allen probes were launched in August 2012 in an effort to further our understanding of the radiation environment…

Expert Insights
Practical Engineering
Introduction to Shielding
By Don MacArthur
I

n our increasingly electronic world, electromagnetic interference (EMI) poses a significant challenge to the reliability and performance of electronic devices. Shielding is a critical technique used in electromagnetic compatibility (EMC) to mitigate the effects of EMI. This article explores the concept of shielding, its importance in EMC, various shielding materials and their applications, and practical tips for designing effective shielding solutions.

The Concept of Shielding and Its Importance in EMC
Shielding is the practice of enclosing electronic components or circuits within a conductive material to block electromagnetic fields from entering or leaving the enclosure. The primary goal of shielding is to reduce the coupling of radiated emissions and susceptibility to external electromagnetic fields, thereby ensuring the proper functioning of electronic devices.
Military and Aerospace EMC
Dealing with Susceptibility
By Patrick André
I

n the commercial world, EMI testing includes emissions testing and what is termed “immunity” testing. As an example, for radiated immunity, the test requirement is performed at a given level, usually 3 V/m or 10 V/m for most devices. If the equipment to be tested becomes upset or responds in any way to the radiated field, the equipment has failed the test.1 The only options are redesigning the equipment or claiming a lower category for the standard. There is no relaxation or allowance for not meeting the test level.

In the case of military and aerospace testing, the tests are called “susceptibility” and not immunity tests. They tend to be performed to a much higher level than commercial tests, and over a wider frequency range. Most test levels vary over frequency. In the case of DO-160, the test levels for radiated susceptibility may be much higher at higher frequencies than at lower frequencies. One example is Category R, which is run at a maximum of 20 V/m from 100-400 MHz but requires pulse modulation testing of 150 V/m at 400 MHz and higher.

Conversations in engineering
Confessions of an Automotive EMC Standards Junkie
By Robert Kado
T

here’s an old joke in engineering that standards are written by people who’ve already survived the problem. After decades working in automotive EMC, I’d add another line: the best standards are written by people who were willing to get on airplanes.

My career has unfolded alongside the evolution of international automotive EMC standards—CISPR 25, ISO 11452, SAE J1113, and UNECE Regulation No. 10. I’ve watched them grow thicker, more detailed, and more globally influential. What hasn’t changed is how real progress happens: people gathered in a room, working out difficult technical tradeoffs face-to-face.

Choose Your Compliance Adventure
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Product Safety, Certifications, and Compliance: The Decisions That Determine Market Success
How Product Launches Are Won or Lost Long Before the Deadline
By John Allen
T

here comes a moment (typically far too late in the process) when someone in product development asks, “We can get this certified by launch… right?”

The room gets quiet.

Engineering looks at Quality. Quality looks at Regulatory (and in small businesses around the world, each of those teams amounts to just one person). Regulatory starts calculating how many pages are in the standard and how many nights of sleep remain before the ship date.

A person in a plaid shirt holds an open yellow notebook and a pencil, with a blurred stack of books in the background.
How Engineering Education Can Build Safer Products
Equipping Engineers to Navigate Standards and Safety Responsibilities
By Steli Loznen
T

he world is changing. The unprecedented number of accidents and product recalls in recent years and subsequent low consumer recall compliance raise questions about the role that various factors (i.e., education, regulations, etc.) play in ensuring safer products. The increase in quantity and complexity of products also leads to an increase in potential hazards, which can endanger the safety of people or properties, even when those products are installed, maintained, and used for their intended purpose.

In this article, we present an argument for how effective engineering education can increase the impact of professionals involved in safety compliance. Our reasoning should help guide the academic engineering community and make a compelling case for greater resource allocation in educational programs and initiatives to improve compliance for safer products.

A city at dusk with illuminated power lines and data streams connecting pylons.
Introduction to Fault-Managed Power
By Dave Lorusso, Stanley Mlyniec, and Jonathan Casey
Editor’s Note: The paper on which this article is based was originally presented at the 2025 IEEE Product International Symposium on Product Compliance Engineering (ISPCE), held in San Francisco, CA in May 2025, where it received the 2025 Best Paper Award. It is reprinted here with the gracious permission of the IEEE. Copyright 2026, IEEE.
Introduction
Fault-managed power (FMP) systems represent a transformative advancement in power distribution, offering a safer, more efficient alternative to traditional methods. Defined under standards such as UL 1400‑1 [1] and National Electrical Code (NEC) Article 726 [2], FMP systems enable the transmission of higher voltages (up to 450 V) while maintaining stringent safety measures [3]. By incorporating real‑time fault detection, fault-energy limitation, and rapid shutdown mechanisms, these systems mitigate risks of fire, electric shock, and equipment damage. FMP leverages innovations such as packet energy transfer to ensure safe operation even in fault scenarios. By addressing safety and efficiency challenges, FMP is poised to redefine power distribution across industries.
 
EMC Concepts Explained
Impact of PCB Via and Trace Geometry on the Effectiveness of Decoupling Capacitors
Part 3: Conducted Emissions Results – Impact of the Distance from Internal Power-Ground Plane Pair and Impact of the Via Topology
By Bogdan Adamczyk, Allyson Telck, and Scott Mee
T

his is the third and final article in the series investigating the effectiveness of decoupling capacitors while varying the topology of vias, trace length between the decoupling capacitor and the IC power/ground pins, and distance from the internal power-ground plane pair. The first article [1] introduced the electrical schematic, via and trace topologies, as well as PCB topology. The second article [2] addressed the impact of the distance of the capacitor from the IC VCC and GND pins on the conducted emissions. This article investigates the impact of conducted emissions due to the distance of the capacitor from the internal power-ground plane pair and the impact of the capacitor via topology. The conducted emissions are measured using the CISPR25 standard, as shown in the second article [2] in the series.

System Description
Figure 1 shows the block diagram of the system studied. When power is applied to the IC, it toggles the LEDs on and off, rapidly using a constant rate. The purpose of switching the LEDs on and off rapidly is to create a periodic power (charge) draw, thus creating a need for proper Power Delivery Network (PDN) decoupling to reduce or eliminate conducted and radiated emissions. The topology and impact of the decoupling capacitors was presented in [2].
 
Hot Topics in ESD
Common Pitfalls with ESD Flooring Systems
(and How to Avoid Them)
By Tom Ricciardelli on behalf of EOS/ESD Association, Inc.
A

n electrostatic discharge (ESD) flooring system is a critical component in environments where static electricity can damage sensitive electronics, disrupt operations, or create safety risks. From electronics manufacturing and data centers to healthcare labs and aerospace facilities, ESD flooring plays a foundational role in static control programs.

The term “flooring systems” ensures the end-user understands that several components create the complete path to ground. For example, with a glue-down vinyl tile, the flooring system would include the vinyl tile itself, the adhesive used to secure the tile and provide a connection to ground, the substrate it is adhered to, any finish applied to the tile, and the grounding connection. Any faulty element of this system, such as using a regular (insulative) adhesive, would cause the system to fail.

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