diff --git a/sbf-cpp/Ranks.cpp b/sbf-cpp/Ranks.cpp
index 7fb0372..f6d634e 100644
--- a/sbf-cpp/Ranks.cpp
+++ b/sbf-cpp/Ranks.cpp
@@ -11,6 +11,22 @@ using std::string;
 using std::vector;
 }  // End namespace
 
+const std::string kRankPrimaryLabel = "Primary";
+const std::string kRankSecondaryLabel = "Secondary";
+const std::string kRankTertiaryLabel = "Tertiary";
+const int kRanksCount = 3;
+const RankType kRankPrimary = {kRankPrimaryId, kRankPrimaryLabel};
+const RankType kRankSecondary = {kRankSecondaryId, kRankSecondaryLabel};
+const RankType kRankTertiary = {kRankTertiaryId, kRankTertiaryLabel};
+const RankType kRankUnknown = {0, ""};
+
+const RankType kRanks[]{
+    kRankUnknown,
+    kRankPrimary,
+    kRankSecondary,
+    kRankTertiary,
+};
+
 ostream& operator<<(ostream& os, const RankType& rank) {
   os << "Rank: {id: " << rank.id << ", label: \"" << rank.label << "\"}";
   return os;
diff --git a/sbf-cpp/Ranks.h b/sbf-cpp/Ranks.h
index 06e317d..4455e61 100644
--- a/sbf-cpp/Ranks.h
+++ b/sbf-cpp/Ranks.h
@@ -16,30 +16,14 @@
  */
 namespace SBF {
 const int kRankPrimaryId = 1;
-const std::string kRankPrimaryLabel = "Primary";
 const int kRankSecondaryId = 2;
-const std::string kRankSecondaryLabel = "Secondary";
 const int kRankTertiaryId = 3;
-const std::string kRankTertiaryLabel = "Tertiary";
-const int kRanksCount = 3;
 
 struct RankType {
   int id;
   std::string label;
 };
 
-const RankType kRankPrimary = {kRankPrimaryId, kRankPrimaryLabel};
-const RankType kRankSecondary = {kRankSecondaryId, kRankSecondaryLabel};
-const RankType kRankTertiary = {kRankTertiaryId, kRankTertiaryLabel};
-const RankType kRankUnknown = {0, ""};
-
-const RankType kRanks[]{
-    kRankUnknown,
-    kRankPrimary,
-    kRankSecondary,
-    kRankTertiary,
-};
-
 /// @brief Writes a rank to an ostream.
 /// @param os The ostream to write to.
 /// @param rank The rank to write.
diff --git a/sbf-cpp/Ranks_test.cpp b/sbf-cpp/Ranks_test.cpp
index eea875b..7c9092d 100644
--- a/sbf-cpp/Ranks_test.cpp
+++ b/sbf-cpp/Ranks_test.cpp
@@ -14,6 +14,21 @@ using namespace Test;
 using namespace std;
 }  // End namespace
 
+const std::string kRankPrimaryLabel = "Primary";
+const std::string kRankSecondaryLabel = "Secondary";
+const std::string kRankTertiaryLabel = "Tertiary";
+const RankType kRankPrimary = {kRankPrimaryId, kRankPrimaryLabel};
+const RankType kRankSecondary = {kRankSecondaryId, kRankSecondaryLabel};
+const RankType kRankTertiary = {kRankTertiaryId, kRankTertiaryLabel};
+const RankType kRankUnknown = {0, ""};
+
+const RankType kRanks[]{
+    kRankUnknown,
+    kRankPrimary,
+    kRankSecondary,
+    kRankTertiary,
+};
+
 TestResults test_GetRank() {
   return execute_suite<RankType, int>(make_test_suite(
       "SBF::GetRank",