diff --git a/docs/users_guide/framework_basics/design_overview.md b/docs/users_guide/framework_basics/design_overview.md
index a63a6846d..7446bea7f 100644
--- a/docs/users_guide/framework_basics/design_overview.md
+++ b/docs/users_guide/framework_basics/design_overview.md
@@ -53,7 +53,7 @@ For example:
   _luminous intensity_ ($\mathsf{J}$) are the base dimensions of the [ISQ](../../appendix/glossary.md#isq).
 - A derived dimension of _force_ in the [ISQ](../../appendix/glossary.md#isq) is denoted by
   $\textsf{dim }F = \mathsf{LMT}^{–2}$.
-- The implementation of IEC 80000 in this library provides `iec80000::dim_traffic_intensity`
+- The implementation of IEC 80000 in this library provides `iec::dim_traffic_intensity`
   base dimension to extend ISQ with strong information technology quantities.
 
 [Base dimensions](../../appendix/glossary.md#base-dimension) can be defined by the user in
diff --git a/src/systems/CMakeLists.txt b/src/systems/CMakeLists.txt
index 1d7681bcb..81fd2abd8 100644
--- a/src/systems/CMakeLists.txt
+++ b/src/systems/CMakeLists.txt
@@ -24,10 +24,10 @@ add_mp_units_module(
     systems mp-units-systems
     DEPENDENCIES mp-units::core
     HEADERS include/mp-units/systems/angular/units.h
-            include/mp-units/systems/iec80000/binary_prefixes.h
-            include/mp-units/systems/iec80000/quantities.h
-            include/mp-units/systems/iec80000/unit_symbols.h
-            include/mp-units/systems/iec80000/units.h
+            include/mp-units/systems/iec/binary_prefixes.h
+            include/mp-units/systems/iec/quantities.h
+            include/mp-units/systems/iec/unit_symbols.h
+            include/mp-units/systems/iec/units.h
             include/mp-units/systems/isq/atomic_and_nuclear_physics.h
             include/mp-units/systems/isq/base_quantities.h
             include/mp-units/systems/isq/electromagnetism.h
@@ -44,7 +44,7 @@ add_mp_units_module(
             include/mp-units/systems/cgs.h
             include/mp-units/systems/hep.h
             include/mp-units/systems/iau.h
-            include/mp-units/systems/iec80000.h
+            include/mp-units/systems/iec.h
             include/mp-units/systems/imperial.h
             include/mp-units/systems/international.h
             include/mp-units/systems/isq.h
diff --git a/src/systems/include/mp-units/systems/iec80000.h b/src/systems/include/mp-units/systems/iec.h
similarity index 86%
rename from src/systems/include/mp-units/systems/iec80000.h
rename to src/systems/include/mp-units/systems/iec.h
index 0b19046b2..d46b9125b 100644
--- a/src/systems/include/mp-units/systems/iec80000.h
+++ b/src/systems/include/mp-units/systems/iec.h
@@ -23,10 +23,10 @@
 #pragma once
 
 // IWYU pragma: begin_exports
-#include <mp-units/systems/iec80000/binary_prefixes.h>
-#include <mp-units/systems/iec80000/quantities.h>
-#include <mp-units/systems/iec80000/unit_symbols.h>
-#include <mp-units/systems/iec80000/units.h>
+#include <mp-units/systems/iec/binary_prefixes.h>
+#include <mp-units/systems/iec/quantities.h>
+#include <mp-units/systems/iec/unit_symbols.h>
+#include <mp-units/systems/iec/units.h>
 
 #ifndef MP_UNITS_IN_MODULE_INTERFACE
 #include <mp-units/framework.h>
diff --git a/src/systems/include/mp-units/systems/iec80000/binary_prefixes.h b/src/systems/include/mp-units/systems/iec/binary_prefixes.h
similarity index 97%
rename from src/systems/include/mp-units/systems/iec80000/binary_prefixes.h
rename to src/systems/include/mp-units/systems/iec/binary_prefixes.h
index e09a218d2..9249eba6d 100644
--- a/src/systems/include/mp-units/systems/iec80000/binary_prefixes.h
+++ b/src/systems/include/mp-units/systems/iec/binary_prefixes.h
@@ -28,7 +28,7 @@
 #include <mp-units/framework/unit.h>
 #endif
 
-namespace mp_units::iec80000 {
+namespace mp_units::iec {
 
 // clang-format off
 template<PrefixableUnit U> struct kibi_ final : prefixed_unit<"Ki", mag_power<2, 10>, U{}> {};
@@ -54,4 +54,4 @@ template<PrefixableUnit auto U> constexpr yobi_<MP_UNITS_REMOVE_CONST(decltype(U
 
 MP_UNITS_EXPORT_END
 
-}  // namespace mp_units::iec80000
+}  // namespace mp_units::iec
diff --git a/src/systems/include/mp-units/systems/iec80000/quantities.h b/src/systems/include/mp-units/systems/iec/quantities.h
similarity index 98%
rename from src/systems/include/mp-units/systems/iec80000/quantities.h
rename to src/systems/include/mp-units/systems/iec/quantities.h
index f9b23547a..0d496e6bc 100644
--- a/src/systems/include/mp-units/systems/iec80000/quantities.h
+++ b/src/systems/include/mp-units/systems/iec/quantities.h
@@ -32,7 +32,7 @@
 #endif
 
 MP_UNITS_EXPORT
-namespace mp_units::iec80000 {
+namespace mp_units::iec {
 
 // dimensions of base quantities
 // clang-format off
@@ -75,4 +75,4 @@ QUANTITY_SPEC(decision_content, dimensionless);
 // TODO how to model information_content and the following quantities???
 // QUANTITY_SPEC(information_content, ...);
 
-}  // namespace mp_units::iec80000
+}  // namespace mp_units::iec
diff --git a/src/systems/include/mp-units/systems/iec80000/unit_symbols.h b/src/systems/include/mp-units/systems/iec/unit_symbols.h
similarity index 95%
rename from src/systems/include/mp-units/systems/iec80000/unit_symbols.h
rename to src/systems/include/mp-units/systems/iec/unit_symbols.h
index 53d423a8d..e6f621a9a 100644
--- a/src/systems/include/mp-units/systems/iec80000/unit_symbols.h
+++ b/src/systems/include/mp-units/systems/iec/unit_symbols.h
@@ -23,12 +23,12 @@
 #pragma once
 
 #include <mp-units/bits/module_macros.h>
-#include <mp-units/systems/iec80000/binary_prefixes.h>
-#include <mp-units/systems/iec80000/units.h>
+#include <mp-units/systems/iec/binary_prefixes.h>
+#include <mp-units/systems/iec/units.h>
 #include <mp-units/systems/si/prefixes.h>
 
 MP_UNITS_EXPORT
-namespace mp_units::iec80000::unit_symbols {
+namespace mp_units::iec::unit_symbols {
 
 // bit
 inline constexpr auto kbit = si::kilo<bit>;
@@ -108,4 +108,4 @@ inline constexpr auto QBd = si::quetta<baud>;
 // TODO do we need prefixed versions of Erlang?
 inline constexpr auto E = erlang;
 
-}  // namespace mp_units::iec80000::unit_symbols
+}  // namespace mp_units::iec::unit_symbols
diff --git a/src/systems/include/mp-units/systems/iec80000/units.h b/src/systems/include/mp-units/systems/iec/units.h
similarity index 94%
rename from src/systems/include/mp-units/systems/iec80000/units.h
rename to src/systems/include/mp-units/systems/iec/units.h
index 4d1ee0983..613c2535d 100644
--- a/src/systems/include/mp-units/systems/iec80000/units.h
+++ b/src/systems/include/mp-units/systems/iec/units.h
@@ -23,7 +23,7 @@
 #pragma once
 
 #include <mp-units/bits/module_macros.h>
-#include <mp-units/systems/iec80000/quantities.h>
+#include <mp-units/systems/iec/quantities.h>
 #include <mp-units/systems/si/units.h>
 
 #ifndef MP_UNITS_IN_MODULE_INTERFACE
@@ -31,7 +31,7 @@
 #endif
 
 MP_UNITS_EXPORT
-namespace mp_units::iec80000 {
+namespace mp_units::iec {
 
 // clang-format off
 inline constexpr struct erlang final : named_unit<"E", kind_of<traffic_intensity>> {} erlang;
@@ -41,4 +41,4 @@ inline constexpr struct byte final : named_unit<"B", mag<8> * bit> {} byte;
 inline constexpr struct baud final : named_unit<"Bd", one / si::second, kind_of<modulation_rate>> {} baud;
 // clang-format on
 
-}  // namespace mp_units::iec80000
+}  // namespace mp_units::iec
diff --git a/src/systems/mp-units-systems.cpp b/src/systems/mp-units-systems.cpp
index 6c2207ee4..72b8f7174 100644
--- a/src/systems/mp-units-systems.cpp
+++ b/src/systems/mp-units-systems.cpp
@@ -38,7 +38,7 @@ import std;
 #include <mp-units/systems/cgs.h>
 #include <mp-units/systems/hep.h>
 #include <mp-units/systems/iau.h>
-#include <mp-units/systems/iec80000.h>
+#include <mp-units/systems/iec.h>
 #include <mp-units/systems/imperial.h>
 #include <mp-units/systems/international.h>
 #include <mp-units/systems/isq.h>
diff --git a/test/static/CMakeLists.txt b/test/static/CMakeLists.txt
index 2d8b5f67a..a16b1edc5 100644
--- a/test/static/CMakeLists.txt
+++ b/test/static/CMakeLists.txt
@@ -39,7 +39,7 @@ add_library(
     fixed_string_test.cpp
     hep_test.cpp
     iau_test.cpp
-    iec80000_test.cpp
+    iec_test.cpp
     imperial_test.cpp
     international_test.cpp
     isq_test.cpp
diff --git a/test/static/iec80000_test.cpp b/test/static/iec_test.cpp
similarity index 97%
rename from test/static/iec80000_test.cpp
rename to test/static/iec_test.cpp
index 289d403ec..6d5825c59 100644
--- a/test/static/iec80000_test.cpp
+++ b/test/static/iec_test.cpp
@@ -20,7 +20,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-#include <mp-units/systems/iec80000.h>
+#include <mp-units/systems/iec.h>
 #include <mp-units/systems/isq/base_quantities.h>
 #include <mp-units/systems/si.h>
 
@@ -29,8 +29,8 @@
 namespace {
 
 using namespace mp_units;
-using namespace mp_units::iec80000;
-using namespace mp_units::iec80000::unit_symbols;
+using namespace mp_units::iec;
+using namespace mp_units::iec::unit_symbols;
 using namespace mp_units::si::unit_symbols;
 using enum mp_units::quantity_character;
 
diff --git a/test/static/unit_symbol_test.cpp b/test/static/unit_symbol_test.cpp
index 41af02f2f..c87831be8 100644
--- a/test/static/unit_symbol_test.cpp
+++ b/test/static/unit_symbol_test.cpp
@@ -21,7 +21,7 @@
 // SOFTWARE.
 
 #include <mp-units/systems/iau.h>
-#include <mp-units/systems/iec80000.h>
+#include <mp-units/systems/iec.h>
 #include <mp-units/systems/si.h>
 #ifdef MP_UNITS_IMPORT_STD
 import std;
@@ -33,7 +33,7 @@ namespace {
 
 using namespace mp_units;
 using namespace mp_units::si;
-using namespace mp_units::iec80000;
+using namespace mp_units::iec;
 
 using enum text_encoding;
 using enum unit_symbol_solidus;