diff --git a/celeritas.spec b/celeritas.spec
new file mode 100644
index 00000000000..18991df83ad
--- /dev/null
+++ b/celeritas.spec
@@ -0,0 +1,54 @@
+### RPM external celeritas v0.4.1
+## INCLUDE compilation_flags
+## INCLUDE compilation_flags_lto
+## INCLUDE cpp-standard
+%define keep_archives true
+%define celeritas_gitversion %(echo %{realversion} | sed -e 's|^v||;s|-.*||')
+%define tag c0f4129c391a6d7cfad41f3e0e3ccd0445633732
+Source: git+https://github.com/celeritas-project/celeritas?obj=develop/%{tag}&export=%{n}-%{realversion}&output=/%{n}-%{realversion}.tgz
+BuildRequires: cmake
+
+%define build_flags -Wall -Wextra -pedantic %{?arch_build_flags} %{?lto_build_flags} %{?pgo_build_flags}
+Requires: json
+Requires: geant4
+Requires: vecgeom
+
+%prep
+%setup -n %{n}-%{realversion}
+
+%build
+
+rm -rf ../build
+mkdir ../build
+cd ../build
+
+cmake ../%{n}-%{realversion} \
+  -DCeleritas_GIT_DESCRIBE="%{celeritas_gitversion};;" \
+  -DCMAKE_INSTALL_PREFIX=%{i} \
+  -DCMAKE_CXX_STANDARD:STRING="%{cms_cxx_standard}" \
+  -DCMAKE_AR=$(which gcc-ar) \
+  -DCMAKE_RANLIB=$(which gcc-ranlib) \
+  -DCMAKE_BUILD_TYPE=%{cmake_build_type} \
+  -DCMAKE_CXX_FLAGS="%{build_flags}" \
+  -DCMAKE_PREFIX_PATH="%{cmake_prefix_path}" \
+  -DBUILD_SHARED_LIBS=OFF \
+  -DCELERITAS_BUILD_TESTS=OFF \
+  -DCELERITAS_DEBUG=OFF \
+  -DCELERITAS_USE_CUDA=OFF \
+  -DCELERITAS_USE_Geant4=ON \
+  -DCELERITAS_USE_HIP=OFF \
+  -DCELERITAS_USE_HepMC3=OFF \
+  -DCELERITAS_USE_JSON=ON \
+  -DCELERITAS_USE_MPI=OFF \
+  -DCELERITAS_USE_ROOT=OFF \
+  -DCELERITAS_USE_SWIG=OFF \
+  -DCELERITAS_USE_VecGeom=ON
+
+make %{makeprocesses} VERBOSE=1
+
+%install
+cd ../build
+make %{makeprocesses} install VERBOSE=1
+
+%post
+%{relocateConfig}lib64/cmake/Celeritas/CeleritasConfig.cmake
diff --git a/cmssw-tool-conf.spec b/cmssw-tool-conf.spec
index a798ef547df..1a91f0a58eb 100644
--- a/cmssw-tool-conf.spec
+++ b/cmssw-tool-conf.spec
@@ -1,4 +1,4 @@
-### RPM cms cmssw-tool-conf 59.0
+### RPM cms cmssw-tool-conf 60.0
 # With cmsBuild, change the above version only when a new tool is added
 
 ## INSTALL_DEPENDENCIES cmsLHEtoEOSManager gcc-fixincludes cmssw-osenv cms-git-tools SCRAMV2
@@ -6,6 +6,7 @@
 
 Requires: AXOL1TL
 Requires: CICADA
+Requires: celeritas
 Requires: crab
 Requires: cmssw-wm-tools
 Requires: google-benchmark
diff --git a/scram-tools.file/tools/celeritas/celeritas.xml b/scram-tools.file/tools/celeritas/celeritas.xml
new file mode 100644
index 00000000000..0e84cf586f1
--- /dev/null
+++ b/scram-tools.file/tools/celeritas/celeritas.xml
@@ -0,0 +1,15 @@
+<tool name="celeritas" version="@TOOL_VERSION@">
+  <info url="https://github.com/celeritas-project/celeritas"/>
+  <lib name="celeritas"/>
+  <lib name="corecel"/>
+  <lib name="accel"/>
+  <client>
+    <environment name="CELERITAS_BASE" default="@TOOL_ROOT@"/>
+    <environment name="INCLUDE" default="$CELERITAS_BASE/include"/>
+    <environment name="LIBDIR" default="$CELERITAS_BASE/lib64"/>
+  </client>
+  <flags REM_CXXFLAGS="-Werror=missing-braces"/>
+  <use name="vecgeom_interface"/>
+  <use name="geant4core"/>
+  <use name="vecgeom"/>
+</tool>