diff --git a/docs/manual/mod/mod_ssl.html.en b/docs/manual/mod/mod_ssl.html.en
index 4580f1c..fb8202e 100644
--- a/docs/manual/mod/mod_ssl.html.en
+++ b/docs/manual/mod/mod_ssl.html.en
@@ -991,7 +991,8 @@ the certificate being verified.</p>
 <p>This option enables OCSP validation of the client certificate
 chain.  If this option is enabled, certificates in the client's
 certificate chain will be validated against an OCSP responder after
-normal verification (including CRL checks) have taken place.</p>
+normal verification (including CRL checks) have taken place. In 
+mode 'leaf', only the client certificate itself will be validated.</p>
 
 <p>The OCSP responder used is either extracted from the certificate
 itself, or derived by configuration; see the
diff --git a/modules/ssl/mod_ssl.c b/modules/ssl/mod_ssl.c
index 4a8b661..e637a9d 100644
--- a/modules/ssl/mod_ssl.c
+++ b/modules/ssl/mod_ssl.c
@@ -227,8 +227,8 @@ static const command_rec ssl_config_cmds[] = {
                 "request body if a per-location SSL renegotiation is required due to "
                 "changed access control requirements")
 
-    SSL_CMD_SRV(OCSPEnable, FLAG,
-               "Enable use of OCSP to verify certificate revocation ('on', 'off')")
+    SSL_CMD_SRV(OCSPEnable, RAW_ARGS,
+               "Enable use of OCSP to verify certificate revocation mode ('on', 'leaf', 'off')")
     SSL_CMD_SRV(OCSPDefaultResponder, TAKE1,
                "URL of the default OCSP Responder")
     SSL_CMD_SRV(OCSPOverrideResponder, FLAG,
diff --git a/modules/ssl/ssl_engine_config.c b/modules/ssl/ssl_engine_config.c
index 86a7f0f..714aee9 100644
--- a/modules/ssl/ssl_engine_config.c
+++ b/modules/ssl/ssl_engine_config.c
@@ -130,7 +130,7 @@ static void modssl_ctx_init(modssl_ctx_t *mctx)
     mctx->auth.verify_depth   = UNSET;
     mctx->auth.verify_mode    = SSL_CVERIFY_UNSET;
 
-    mctx->ocsp_enabled        = FALSE;
+    mctx->ocsp_mask           = UNSET;
     mctx->ocsp_force_default  = FALSE;
     mctx->ocsp_responder      = NULL;
     mctx->ocsp_resptime_skew  = UNSET;
@@ -264,7 +264,7 @@ static void modssl_ctx_cfg_merge(modssl_ctx_t *base,
     cfgMergeInt(auth.verify_depth);
     cfgMerge(auth.verify_mode, SSL_CVERIFY_UNSET);
 
-    cfgMergeBool(ocsp_enabled);
+    cfgMergeInt(ocsp_mask);
     cfgMergeBool(ocsp_force_default);
     cfgMerge(ocsp_responder, NULL);
     cfgMergeInt(ocsp_resptime_skew);
@@ -1575,11 +1575,46 @@ const char *ssl_cmd_SSLUserName(cmd_parms *cmd, void *dcfg,
     return NULL;
 }
 
-const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, int flag)
+static const char *ssl_cmd_ocspcheck_parse(cmd_parms *parms,
+                                           const char *arg,
+                                           int *mask)
 {
-    SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
+    const char *w;
+
+    w = ap_getword_conf(parms->temp_pool, &arg);
+    if (strcEQ(w, "off")) {
+        *mask = SSL_OCSPCHECK_NONE;
+    }
+    else if (strcEQ(w, "leaf")) {
+        *mask = SSL_OCSPCHECK_LEAF;
+    }
+    else if (strcEQ(w, "on")) {
+        *mask = SSL_OCSPCHECK_CHAIN;
+    }
+    else {
+        return apr_pstrcat(parms->temp_pool, parms->cmd->name,
+                           ": Invalid argument '", w, "'",
+                           NULL);
+    }
+
+    while (*arg) {
+        w = ap_getword_conf(parms->temp_pool, &arg);
+        if (strcEQ(w, "no_ocsp_for_cert_ok")) {
+            *mask |= SSL_OCSPCHECK_NO_OCSP_FOR_CERT_OK;
+        }
+        else {
+            return apr_pstrcat(parms->temp_pool, parms->cmd->name,
+                               ": Invalid argument '", w, "'",
+                               NULL);
+        }
+    }
 
-    sc->server->ocsp_enabled = flag ? TRUE : FALSE;
+    return NULL;
+}
+
+const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, const char *arg)
+{
+    SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
 
 #ifdef OPENSSL_NO_OCSP
     if (flag) {
@@ -1588,7 +1623,7 @@ const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, int flag)
     }
 #endif
 
-    return NULL;
+    return ssl_cmd_ocspcheck_parse(cmd, arg, &sc->server->ocsp_mask);
 }
 
 const char *ssl_cmd_SSLOCSPOverrideResponder(cmd_parms *cmd, void *dcfg, int flag)
diff --git a/modules/ssl/ssl_engine_init.c b/modules/ssl/ssl_engine_init.c
index 672760c..57b76c0 100644
--- a/modules/ssl/ssl_engine_init.c
+++ b/modules/ssl/ssl_engine_init.c
@@ -762,6 +762,10 @@ static void ssl_init_ctx_crl(server_rec *s,
     unsigned long crlflags = 0;
     char *cfgp = mctx->pkp ? "SSLProxy" : "SSL";
 
+    if (mctx->ocsp_mask == UNSET) {
+        mctx->ocsp_mask = SSL_OCSPCHECK_NONE;
+    }
+
     /*
      * Configure Certificate Revocation List (CRL) Details
      */
diff --git a/modules/ssl/ssl_engine_kernel.c b/modules/ssl/ssl_engine_kernel.c
index 5ff35f5..9dc236c 100644
--- a/modules/ssl/ssl_engine_kernel.c
+++ b/modules/ssl/ssl_engine_kernel.c
@@ -1416,7 +1416,8 @@ int ssl_callback_SSLVerify(int ok, X509_STORE_CTX *ctx)
     /*
      * Perform OCSP-based revocation checks
      */
-    if (ok && sc->server->ocsp_enabled) {
+    if (ok && ((sc->server->ocsp_mask & SSL_OCSPCHECK_CHAIN) ||
+         (errdepth == 0 && (sc->server->ocsp_mask & SSL_OCSPCHECK_LEAF)))) {
         /* If there was an optional verification error, it's not
          * possible to perform OCSP validation since the issuer may be
          * missing/untrusted.  Fail in that case. */
diff --git a/modules/ssl/ssl_engine_ocsp.c b/modules/ssl/ssl_engine_ocsp.c
index 90da5c2..58d267b 100644
--- a/modules/ssl/ssl_engine_ocsp.c
+++ b/modules/ssl/ssl_engine_ocsp.c
@@ -136,7 +136,14 @@ static int verify_ocsp_status(X509 *cert, X509_STORE_CTX *ctx, conn_rec *c,
 
     ruri = determine_responder_uri(sc, cert, c, pool);
     if (!ruri) {
-        return V_OCSP_CERTSTATUS_UNKNOWN;
+        if (sc->server->ocsp_mask & SSL_OCSPCHECK_NO_OCSP_FOR_CERT_OK) {
+            ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c, 
+                          "Skipping OCSP check for certificate cos no OCSP URL"
+                          " found and no_ocsp_for_cert_ok is set");
+            return V_OCSP_CERTSTATUS_GOOD;
+        } else {
+            return V_OCSP_CERTSTATUS_UNKNOWN;
+        }
     }
 
     request = create_request(ctx, cert, &certID, s, pool);
diff --git a/modules/ssl/ssl_private.h b/modules/ssl/ssl_private.h
index b601316..2d505f9 100644
--- a/modules/ssl/ssl_private.h
+++ b/modules/ssl/ssl_private.h
@@ -379,6 +379,16 @@ typedef enum {
 } ssl_crlcheck_t;
 
 /**
+  * OCSP checking mask (mode | flags)
+  */
+typedef enum {
+    SSL_OCSPCHECK_NONE  = (0),
+    SSL_OCSPCHECK_LEAF  = (1 << 0),
+    SSL_OCSPCHECK_CHAIN = (1 << 1),
+    SSL_OCSPCHECK_NO_OCSP_FOR_CERT_OK = (1 << 2)
+} ssl_ocspcheck_t;
+
+/**
  * Define the SSL pass phrase dialog types
  */
 typedef enum {
@@ -668,7 +678,7 @@ typedef struct {
 
     modssl_auth_ctx_t auth;
 
-    BOOL ocsp_enabled; /* true if OCSP verification enabled */
+    int ocsp_mask;
     BOOL ocsp_force_default; /* true if the default responder URL is
                               * used regardless of per-cert URL */
     const char *ocsp_responder; /* default responder URL */
@@ -796,7 +806,7 @@ const char *ssl_cmd_SSLOCSPDefaultResponder(cmd_parms *cmd, void *dcfg, const ch
 const char *ssl_cmd_SSLOCSPResponseTimeSkew(cmd_parms *cmd, void *dcfg, const char *arg);
 const char *ssl_cmd_SSLOCSPResponseMaxAge(cmd_parms *cmd, void *dcfg, const char *arg);
 const char *ssl_cmd_SSLOCSPResponderTimeout(cmd_parms *cmd, void *dcfg, const char *arg);
-const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, int flag);
+const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, const char *flag);
 
 #ifndef OPENSSL_NO_SRP
 const char *ssl_cmd_SSLSRPVerifierFile(cmd_parms *cmd, void *dcfg, const char *arg);