Is .shstrtab always the last section in the ELF file ?

I think the title is pretty clear.

I noticed that .strtab and .shstrtab have the same type and flags (SHT_STRTAB and SHF_STRINGS).

 Idx  Name             Size      VMA       LMA       File off  Algn  EntSize   Info Type     Flags
400.  .strtab          9933      0         0         af2e      0     1         0    3        32 
401.  .shstrtab        1472      0         0         d5fb      0     1         0    3        32 

It's true that in the ELF header the last item tells me which one is .shstrtab

--Index of the section header string table:    [401]

I have a loop that goes through all sections, copying and relocating and whatever it's needed.

for ( i = 0; i < header->e_shnum; i++){

	switch (section_header[i].sh_type ){

		[ other cases ... ]

		case SHT_STRTAB: 
			if ( i != header->e_shstrndx ){
				strtab = section_header[i];
			}
			break;
	}
}

But this only works when there are max 2 SHT_STRTABs. If someone could confirm that there are
only 2 SHT_STRTABs or that the .shstrtab is always the last one I could just avoid iterating the last
section [header->e_shnum - 1] and save the other SHT_STRTAB  I find as .strtab.

case SHT_STRTAB: 
	strtab = section_header[i];
	break;

Thank you.