diff --git a/docs/release-testing-0.7.md b/docs/release-testing-0.7.md
index 4b91e28..f0d944a 100644
--- a/docs/release-testing-0.7.md
+++ b/docs/release-testing-0.7.md
@@ -56,7 +56,7 @@ only in the pass evidence directory, which must not be committed.
 | BLD-13 | CPack source archive has no `-linux`, VCS, build, or private files | [PASS](test-evidence/0.7-r1.md#bld-13) |  |  |
 | BLD-14 | Gentoo live ebuild builds, tests, installs, and passes package QA | [PASS](test-evidence/0.7-r1.md#bld-14) |  |  |
 | BLD-15 | Debian package builds and installs on the target Debian release | [PASS](test-evidence/0.7-r1.md#bld-15) |  |  |
-| BLD-16 | `/usr`, `/usr/local`, lib/lib64, sysconf, state, and runtime paths follow FHS |  |  |  |
+| BLD-16 | `/usr`, `/usr/local`, lib/lib64, sysconf, state, and runtime paths follow FHS | [PASS](test-evidence/0.7-r1.md#bld-16) |  |  |
 | BLD-17 | Install, upgrade, reinstall, and uninstall preserve/remove documented state |  |  |  |
 | BLD-18 | Installed shared libraries have complete dependencies and valid SONAMEs |  |  |  |
 | BLD-19 | Man pages, translations, Web assets, docs, units, and examples are installed |  |  |  |
diff --git a/docs/test-evidence/0.7-r1.md b/docs/test-evidence/0.7-r1.md
index 1056734..1bbffb4 100644
--- a/docs/test-evidence/0.7-r1.md
+++ b/docs/test-evidence/0.7-r1.md
@@ -555,3 +555,62 @@ dpkg-source -x sources/bongo/bongo_0.7.0-1.dsc bongo
 
 Runtime configuration: the workflow used only its disposable Trixie
 container and did not install or alter the live test host.
+
+## BLD-16
+
+Result: **PASS**
+
+Two clean GCC 15.3.0 debug builds exercised crossed prefix/library layouts:
+a distribution `/usr` install using `lib64`, and a self-contained
+`/usr/local` install using `lib`. Both were installed below empty `DESTDIR`
+roots and their compiled defaults, generated units, tmpfiles declaration,
+ELF runpaths, directory trees, and symbolic links were audited.
+
+```sh
+cmake -S . -B /tmp/bongo-bld16-usr -G Ninja \
+  -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=ON \
+  -DCMAKE_INSTALL_PREFIX=/usr -DLIB_DIR_NAME=lib64
+cmake --build /tmp/bongo-bld16-usr --parallel 12
+ctest --test-dir /tmp/bongo-bld16-usr --output-on-failure --parallel 12
+DESTDIR=/tmp/bongo-bld16-usr-root \
+  cmake --install /tmp/bongo-bld16-usr --prefix /usr
+
+cmake -S . -B /tmp/bongo-bld16-local -G Ninja \
+  -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=OFF \
+  -DCMAKE_INSTALL_PREFIX=/usr/local -DLIB_DIR_NAME=lib
+cmake --build /tmp/bongo-bld16-local --parallel 12
+DESTDIR=/tmp/bongo-bld16-local-root \
+  cmake --install /tmp/bongo-bld16-local --prefix /usr/local
+
+systemd-tmpfiles --create --dry-run \
+  --root=/tmp/bongo-bld16-tmpfiles-root \
+  /tmp/bongo-bld16-usr/init/bongo.conf
+```
+
+- Source: commit `58d2e89` (`Move volatile PID files under run`).
+- Full CTest result: 72 passed, 0 failed in 3.40 seconds.
+- `/usr` cache SHA-256:
+  `f56949bfc8fa2a0963c3460a96db3e61bb9f4a274ddfc4370f2d9e7c56025e48`.
+- `/usr/local` cache SHA-256:
+  `5f86eafad069052a4fd7e04b523f6bf56f1f38becab410598cc0df7f8197637d`.
+- Both staged trees contain 1,064 regular files or symbolic links. The first
+  uses `/usr/lib64`, `/etc/bongo`, and `/var/lib/bongo`; the second uses
+  `/usr/local/lib`, `/usr/local/etc/bongo`, and the same FHS state path.
+- No staged directory appeared below `/usr/etc`, `/usr/var`,
+  `/usr/local/var`, `/var/run`, or `/run`. Runtime and persistent directories
+  are declarations created after installation, not package payload.
+- Generated tmpfiles data passed `systemd-tmpfiles` parsing and declares
+  `/run/bongo` separately from `/var/lib/bongo`. The manager, agent recovery
+  flags, administration status, and managed LDAP PID paths all compile to the
+  volatile directory.
+- All installed ELF runpaths match the selected `lib64` or `lib` directory;
+  no build-directory runpath was present. All 26 library symlinks in either
+  staged tree are relative and resolve within their selected library root.
+
+The initial audit failed because PID and agent recovery files still used the
+persistent `/var/lib/bongo/work` directory. The repair adds the configurable
+`BONGO_RUNTIME_DIR` (default `/run/bongo`) while keeping diagnostic traces and
+ring logs in persistent state.
+
+Runtime configuration: isolated staging roots and a dry-run tmpfiles root;
+the live Bongo installation and service were not modified.