ASTM E3347 — The New LE Shield Performance Specification

ASTM E3347/E3347M — published 2022, current rev 25 — is the first US performance specification written specifically for law-enforcement ballistic shields. Where NIJ 0108.01 tests only the shield panel, E3347 evaluates the full assembly: body, edges, viewports, fasteners, and every place a real shield can fail in the field.

What E3347 covers that NIJ 0108.01 doesn't

NIJ 0108.01 is a panel test — a hit against flat protective material, penetration-or-no-penetration. E3347 adds:

Edge integrity — shots against the perimeter of the shield
Viewport performance — penetration resistance of armored glass or polymer viewports
Fastener and seam integrity — shots near handle attachment points, rail mounts, and panel joints
Weak-point testing — everywhere the panel meets something else

In short: E3347 tests the shield, not just the material.

Scope

E3347 applies to:

Hand-held shields
Hand-carried shields
Multi-fold collapsible shields
Person-portable shields with wheels
Stand-alone shields and those used ICW ("in conjunction with") armor appliques

It excludes:

Fixed or mobile barriers not intended to move during operation
Flexible shields that drape across surfaces

This scope explicitly captures the form factors modern LE actually deploys.

The test methodology

E3347 references ASTM E3141 as the paired test method. The E3141 protocol defines:

Shot placement (center, near-edge, viewport, fastener proximity)
Velocity measurement procedure
Resistance-to-penetration (RTP) acceptance criteria
Test fixture specification

The result is a repeatable, defensible protocol that can be executed at multiple test labs and produce comparable results across vendors.

Ballistic levels

E3347 defines performance against handgun and rifle ammunition. Specific threat levels mirror the NIJ 0108.01 taxonomy (IIIA, III, IV) but with the full-assembly test applied.

The procurement consequence: a shield can be NIJ 0108.01 Level III panel certified without being ASTM E3347 Level III — because the E3347 test will catch edge or fastener failures that the panel-only 0108.01 test won't. The reverse is also true (E3347 but not 0108.01) but rare; most vendors certify to both.

The first rifle-rated shield to pass

When E3347 was published in 2022, several incumbent rifle-rated shields on the market failed to pass it on first submission — typically at edge or viewport performance. The GC Patrol Shield (reported by Police1) was among the first to achieve rifle-rated E3347 compliance, marking the standard's real-world operational debut.

Why LE procurement cares

Every LE shield incident where the shield failed at an edge or fastener is, in hindsight, a failure the panel-only 0108.01 test couldn't have caught. E3347 closes that gap. LE procurement officers writing new shield specifications in 2024+ are adding E3347 to the requirement stack, not replacing 0108.01 with it.

RFP language

"Shield shall be certified to NIJ 0108.01 Level [IIIA / III / IV]. In addition, the full shield assembly (including viewport, edges, fasteners, and handle system) shall meet ASTM E3347/E3347M performance requirements tested per ASTM E3141/E3141M at an independent ballistic test laboratory. Bidder shall provide both the NIJ 0108.01 CPL listing and the E3347 test report."

Products

ArmorOS tracks E3347 compliance where vendors publish the test report. This is a newer certification; many shields still in the field predate E3347 and are certified to 0108.01 only.