diff --git a/src/proj.rs b/src/proj.rs
index a24e64b3..fd64b37c 100644
--- a/src/proj.rs
+++ b/src/proj.rs
@@ -6,14 +6,15 @@ use proj_sys::{
     proj_context_destroy, proj_context_errno, proj_context_get_url_endpoint,
     proj_context_is_network_enabled, proj_context_set_search_paths, proj_context_set_url_endpoint,
     proj_create, proj_create_crs_to_crs, proj_destroy, proj_errno_string, proj_get_area_of_use,
-    proj_grid_cache_set_enable, proj_info, proj_normalize_for_visualization, proj_pj_info,
-    proj_trans, proj_trans_array, proj_trans_bounds, PJconsts, PJ_AREA, PJ_CONTEXT, PJ_COORD,
-    PJ_DIRECTION_PJ_FWD, PJ_DIRECTION_PJ_INV, PJ_INFO, PJ_LPZT, PJ_XYZT,
+    proj_get_id_auth_name, proj_get_id_code, proj_grid_cache_set_enable, proj_info,
+    proj_normalize_for_visualization, proj_pj_info, proj_trans, proj_trans_array,
+    proj_trans_bounds, PJconsts, PJ, PJ_AREA, PJ_CONTEXT, PJ_COORD, PJ_DIRECTION_PJ_FWD,
+    PJ_DIRECTION_PJ_INV, PJ_INFO, PJ_LPZT, PJ_XYZT,
 };
 use std::{
     convert, ffi,
     fmt::{self, Debug},
-    str,
+    ptr, str,
 };
 
 #[cfg(feature = "network")]
@@ -592,6 +593,28 @@ impl Proj {
         transform_epsg(ctx, from, to, area)
     }
 
+    /// Return Authority code for Proj
+    ///
+    /// # Safety
+    /// This method contains unsafe code.
+    pub fn id_code(&self) -> Result<&str, str::Utf8Error> {
+        let pj = self.c_proj as *const PJ;
+        let c_char = unsafe { proj_get_id_code(pj, 0) };
+        let c_str = unsafe { CStr::from_ptr(c_char) };
+        c_str.to_str()
+    }
+
+    /// Return Authority Name for Proj
+    ///
+    /// # Safety
+    /// This method contains unsafe code.
+    pub fn id_auth_name(&self) -> Result<&str, str::Utf8Error> {
+        let pj = self.c_proj as *const PJ;
+        let c_char = unsafe { proj_get_id_auth_name(pj, 0) };
+        let c_str = unsafe { CStr::from_ptr(c_char) };
+        c_str.to_str()
+    }
+
     /// Set the bounding box of the area of use
     ///
     /// This bounding box will be used to specify the area of use
@@ -1484,4 +1507,16 @@ mod test {
         assert_eq!(area.north, 84.73);
         assert!(name.contains("Europe"));
     }
+    #[test]
+    fn test_id_code() {
+        let proj = Proj::new("EPSG:3035").unwrap();
+        let code = proj.id_code().unwrap();
+        assert_eq!(code, "3035")
+    }
+    #[test]
+    fn test_id_auth_name() {
+        let proj = Proj::new("EPSG:3035").unwrap();
+        let auth_name = proj.id_auth_name().unwrap();
+        assert_eq!(auth_name, "EPSG")
+    }
 }