  We construct d=4,N=1 orientifolds of Gepner models with just the chiral
spectrum of the standard model. We consider all simple current modular
invariants of c=9 tensor products of N=2 minimal models. For some very specific
tensor combinations, and very specific modular invariants and orientifold
projections, we find a large number of such spectra. We allow for standard
model singlet (dark) matter and non-chiral exotics. The Chan-Paton gauge group
is either U(3) x Sp(2) x U(1) x U(1) or U(3) x U(2) x U(1) x U(1). In many
cases the standard model hypercharge U(1) has no coupling to RR 2-forms and
hence remains massless; in some of those models the B-L gauge boson does
acquire a mass.
