diff --git a/README.md b/README.md
index 0a3ba97..1886ae4 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,11 @@ Options
 - a_srs
 
   Assign an output SRS. Example `--a_srs EPSG:2056`
-  
+
+- no_srs
+
+  Don't read the SLR VLRs. This is only applicable to las files. [Default: false]
+
 - dims
 
   List of dimensions to load. X, Y and Z are always loaded. Limiting the dimensions can
diff --git a/epf/Epf.cpp b/epf/Epf.cpp
index 1691ed5..d0558c7 100644
--- a/epf/Epf.cpp
+++ b/epf/Epf.cpp
@@ -286,11 +286,14 @@ void Epf::createFileInfos(const StringList& input, std::vector<FileInfo>& fileIn
 
         pdal::Options opts;
         opts.add("filename", filename);
+        if (driver == "readers.las")
+            opts.add("nosrs", m_b.opts.no_srs);
         s->setOptions(opts);
 
         FileInfo fi;
         fi.filename = filename;
         fi.driver = driver;
+        fi.no_srs = m_b.opts.no_srs;
         if (driver == "readers.las")
         {
             const std::vector<FileInfo>& infos = processLas(*dynamic_cast<LasReader *>(s), fi);
diff --git a/epf/EpfTypes.hpp b/epf/EpfTypes.hpp
index 879876d..3d40df6 100644
--- a/epf/EpfTypes.hpp
+++ b/epf/EpfTypes.hpp
@@ -48,6 +48,7 @@ struct FileInfo
 
     std::string filename;
     std::string driver;
+    bool no_srs;
     DimInfoList dimInfo;
     uint64_t numPoints;
     uint64_t start;
diff --git a/epf/FileProcessor.cpp b/epf/FileProcessor.cpp
index e1db409..e9c977c 100644
--- a/epf/FileProcessor.cpp
+++ b/epf/FileProcessor.cpp
@@ -133,6 +133,8 @@ void FileProcessor::run()
     pdal::Options opts;
     opts.add("filename", m_fi.filename);
     opts.add("count", m_fi.numPoints);
+    if (m_fi.driver == "readers.las")
+        opts.add("nosrs", m_fi.no_srs);
 #ifdef PDAL_LAS_START
     if (m_fi.driver == "readers.las")
         opts.add("start", m_fi.start);
diff --git a/untwine/Common.hpp b/untwine/Common.hpp
index 63efa29..0fb7776 100644
--- a/untwine/Common.hpp
+++ b/untwine/Common.hpp
@@ -49,6 +49,7 @@ struct Options
     StringList dimNames;
     bool stats;
     std::string a_srs;
+    bool no_srs;
     bool metadata;
     bool dummy;
 };
diff --git a/untwine/Untwine.cpp b/untwine/Untwine.cpp
index ce316c6..ddd5a0c 100644
--- a/untwine/Untwine.cpp
+++ b/untwine/Untwine.cpp
@@ -49,6 +49,8 @@ void addArgs(pdal::ProgramArgs& programArgs, Options& options, pdal::Arg * &temp
         options.a_srs, "");
     programArgs.add("metadata", "Write PDAL metadata to VLR output",
         options.metadata, false);
+    programArgs.add("no_srs", "PDAL readers.las.nosrs passthrough.",
+        options.no_srs, false);
 }
 
 bool handleOptions(pdal::StringList& arglist, Options& options)