diff --git a/nvm.sh b/nvm.sh
index 6dc779e..71c151c 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -461,9 +461,10 @@ nvm_find_up() {
 
 nvm_find_nvmrc() {
   local dir
-  dir="$(nvm_find_up '.nvmrc')"
-  if [ -e "${dir}/.nvmrc" ]; then
-    nvm_echo "${dir}/.nvmrc"
+  local rcfile="${1:-.nvmrc}"
+  dir="$(nvm_find_up "${rcfile}")"
+  if [ -e "${dir}/${rcfile}" ]; then
+    nvm_echo "${dir}/${rcfile}"
   fi
 }
 
@@ -553,7 +554,13 @@ EOF
 nvm_rc_version() {
   export NVM_RC_VERSION=''
   local NVMRC_PATH
-  NVMRC_PATH="$(nvm_find_nvmrc)"
+
+  if [ -n "$1" ]; then
+    NVMRC_PATH="$(nvm_find_nvmrc "$1")"
+  else
+    NVMRC_PATH="$(nvm_find_nvmrc)"
+  fi
+
   if [ ! -e "${NVMRC_PATH}" ]; then
     if [ "${NVM_SILENT:-0}" -ne 1 ]; then
       nvm_err "No .nvmrc file found"
@@ -3223,6 +3230,7 @@ nvm() {
       local PROVIDED_REINSTALL_PACKAGES_FROM
       local REINSTALL_PACKAGES_FROM
       local SKIP_DEFAULT_PACKAGES
+      local NVM_RC_PATH
 
       while [ $# -ne 0 ]; do
         case "$1" in
@@ -3317,6 +3325,10 @@ nvm() {
             SKIP_DEFAULT_PACKAGES=true
             shift
           ;;
+          --config=*)
+            NVM_RC_PATH="${1#--config=}"
+            shift
+          ;;
           *)
             break # stop parsing args
           ;;
@@ -3338,7 +3350,7 @@ nvm() {
             shift
           fi
         else
-          nvm_rc_version
+          nvm_rc_version "$NVM_RC_PATH"
           if [ $version_not_provided -eq 1 ] && [ -z "${NVM_RC_VERSION}" ]; then
             unset NVM_RC_VERSION
             >&2 nvm --help
@@ -3693,6 +3705,7 @@ nvm() {
       local NVM_LTS
       local IS_VERSION_FROM_NVMRC
       IS_VERSION_FROM_NVMRC=0
+      local NVM_RC_PATH
 
       while [ $# -ne 0 ]; do
         case "$1" in
@@ -3704,6 +3717,10 @@ nvm() {
           --) ;;
           --lts) NVM_LTS='*' ;;
           --lts=*) NVM_LTS="${1##--lts=}" ;;
+          --config=*)
+            NVM_RC_PATH="${1#--config=}"
+            shift
+          ;;
           --*) ;;
           *)
             if [ -n "${1-}" ]; then
@@ -3717,7 +3734,7 @@ nvm() {
       if [ -n "${NVM_LTS-}" ]; then
         VERSION="$(nvm_match_version "lts/${NVM_LTS:-*}")"
       elif [ -z "${PROVIDED_VERSION-}" ]; then
-        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version
+        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version "$NVM_RC_PATH"
         if [ -n "${NVM_RC_VERSION-}" ]; then
           PROVIDED_VERSION="${NVM_RC_VERSION}"
           IS_VERSION_FROM_NVMRC=1
@@ -3827,6 +3844,7 @@ nvm() {
       local NVM_SILENT
       local NVM_SILENT_ARG
       local NVM_LTS
+      local NVM_RC_PATH
       while [ $# -gt 0 ]; do
         case "$1" in
           --silent)
@@ -3836,6 +3854,10 @@ nvm() {
           ;;
           --lts) NVM_LTS='*' ; shift ;;
           --lts=*) NVM_LTS="${1##--lts=}" ; shift ;;
+          --config=*)
+            NVM_RC_PATH="${1#--config=}"
+            shift
+          ;;
           *)
             if [ -n "$1" ]; then
               break
@@ -3847,7 +3869,7 @@ nvm() {
       done
 
       if [ $# -lt 1 ] && [ -z "${NVM_LTS-}" ]; then
-        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version && has_checked_nvmrc=1
+        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version "$NVM_RC_PATH" && has_checked_nvmrc=1
         if [ -n "${NVM_RC_VERSION-}" ]; then
           VERSION="$(nvm_version "${NVM_RC_VERSION-}")" ||:
         fi
@@ -3865,7 +3887,7 @@ nvm() {
           if [ "_${VERSION:-N/A}" = '_N/A' ] && ! nvm_is_valid_version "${provided_version}"; then
             provided_version=''
             if [ $has_checked_nvmrc -ne 1 ]; then
-              NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version && has_checked_nvmrc=1
+              NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version "$NVM_RC_PATH" && has_checked_nvmrc=1
             fi
             provided_version="${NVM_RC_VERSION}"
             IS_VERSION_FROM_NVMRC=1
@@ -3903,11 +3925,16 @@ nvm() {
     "exec")
       local NVM_SILENT
       local NVM_LTS
+      local NVM_RC_PATH
       while [ $# -gt 0 ]; do
         case "$1" in
           --silent) NVM_SILENT=1 ; shift ;;
           --lts) NVM_LTS='*' ; shift ;;
           --lts=*) NVM_LTS="${1##--lts=}" ; shift ;;
+          --config=*)
+            NVM_RC_PATH="${1#--config=}"
+            shift
+          ;;
           --) break ;;
           --*)
             nvm_err "Unsupported option \"$1\"."
@@ -3931,7 +3958,7 @@ nvm() {
       elif [ -n "${provided_version}" ]; then
         VERSION="$(nvm_version "${provided_version}")" ||:
         if [ "_${VERSION}" = '_N/A' ] && ! nvm_is_valid_version "${provided_version}"; then
-          NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version && has_checked_nvmrc=1
+          NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version "$NVM_RC_PATH" && has_checked_nvmrc=1
           provided_version="${NVM_RC_VERSION}"
           unset NVM_RC_VERSION
           VERSION="$(nvm_version "${provided_version}")" ||:
@@ -4055,16 +4082,21 @@ nvm() {
     "which")
       local NVM_SILENT
       local provided_version
+      local NVM_RC_PATH
       while [ $# -ne 0 ]; do
         case "${1}" in
           --silent) NVM_SILENT=1 ;;
+          --config=*)
+            NVM_RC_PATH="${1#--config=}"
+            shift
+          ;;
           --) ;;
           *) provided_version="${1-}" ;;
         esac
         shift
       done
       if [ -z "${provided_version-}" ]; then
-        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version
+        NVM_SILENT="${NVM_SILENT:-0}" nvm_rc_version "$NVM_RC_PATH"
         if [ -n "${NVM_RC_VERSION}" ]; then
           provided_version="${NVM_RC_VERSION}"
           VERSION=$(nvm_version "${NVM_RC_VERSION}") ||: